uhmmm, assuming we are getting only 5 new newcomers and 4 more echoes... (frankly im putting way too much echoes, but they are indeed great for filling space)
66-Simon Belmont.
67-KingKrool.
68-Ashley.
69-Rythm Heaven Character.
70-Dillon.
Echoes:
e:Samus)-Sylux.
e:Shiek)-Impa.
e:Ike)-Chrom.
e:Sonic)-Either Tails or Shadow works here.
Honorary Mentions: Elma, Captain Toad, 7th gen pokemon, Isaac, Geno, ShovelKnight.
First Wave DLC (2019/2020)
71- ExAT) Waluigi
72- Switch Rep) BOTW Champion.
73- Switch Rep) Arms fighter.
74- Switch Rep) Xenoblade Chronicles 2 rep/Fire emblem switch rep.
75- Third Party Star) Solaire of Astoria, (or darksouls rep)
76- Third Party Star) Crash Bandicot
Second Wave DLC (2021/2022)
77- ExAT) Lyndis
78- Switch Rep) 8th gen poke?
79- Swicth Rep) ??
80- Switch Rep) ??
81- ExAT Third Party Star) Bomberman
82- Third Party Star) ??
Reasonings:
Simon: this game megaman,the first part of the leak was real so there is a decent chance the second part also is, Thankfully Castlevania netflix series have given certain relevancy to the series again, and NES and SNES minis success have also given the franchise (Specially Simon's games) a lot of visibility.
Donkey Kong Country is still a healthy important franchise that ahven't got a lot in smash so a DKC Newcomer would help the roster, It certainly helps that a lot of people thinks likewise and have 2 of the more popular smash candidates. King k rool would be here uniquely for popularity sake although Dixie is still an option.
Little witches are kinda big on japan, so honestly is no wonder why Ashley became so insanely popular, to the point of even competing with wario regarding popularity on the wario ware games. While DKC rep, Simon Belmont and Ridley caters more to the western fanbase I think that at least one popular star from japan is going to make the cut (Inklings doesn't count, since Inklings was the only 100% shoe in in the game by a plethora of reasons)
That being said, outside of Inklings and Castlevania, there isnt much new franchises out there, With super popular picks such as Ridley, Krool, Ashley, Snake and Wolf are already in, the last 2 slots were used to represent 2 other series. Rythm heaven certainly is a big contender, although exactly WHO should do teh job still can be in the air, im pretty sure all of the supporters will be happy with someone representing the quirkiness of its minigames and a rythm based moveset would make almost everyone happy.
As for Dillon, honestly this would be more akin to a left field pick, since is certainly a character lots of people are sleeping on, and would be somewhat a surprise. a couple of interviews seems to be suggesting that nintendo would wish that this guys was doing more noise (i blame its newer game being into a console fading into obscurity) and being in smash, and a switch rerelease of some of its game certainly would boost its popularity. That being said, this is by far the less likely character in this list though... but somewhere you need to take risks
Honorary Mentions: well all of this were left out since I ran out of space on the 70 character roster, certainly lots of this guys would make great characters and would be prime candidates if we get more newcomers in the base roster. but for now im playing it safe. The more priority one in this list is the 7th gen pokemon, but with 8th gen on teh horizon, you never really know. Sadly, with the exception of shovelknight, all of this characters chances seem to be now or never.
Echoes:
Sylux: yeah. yeah, dark samus... I love Dark samus, and I love MP2 but i still think that she would be awkward as an echo. a luigified clone or a semiclone would work way better, but the question is.. is she worth it? on teh other hand Sylux would work well as an echo, not only he have been playable, but he also have played by the same rules that samus played on that game (MPHunters) meaning that by design, he moves similar to samus and does the kind of stuff that samus does. teh only differences it would need to ahve is replacing neutral B Charge beam with Shock Coil, and giving some different properties to his down b mines and he is set. Sylux main problem is that his fanbase is.... well, a tad small. But if he is going to have a prime role in mp4 , he could very well be liek Roy, a kinda last minute extra in order to promote an upcoming game.
Impa and chrom: two characters with decently big but not massive fanbases that could work as character's echoes. Not saying that impa or chrom cant have original movesets, but they seem to be in the daisy train, not big or important enough for unique movesets (you need to be RidleyBIG for that
), but still big enough and can work as an echo. and as daisy, would make a lot of people happy.
Tails and shadow: both important, both with fanbases (albeit, completely opposite fanbases) and both could work as sonic echo with a couple of different animations and stats (shadow less traction and acceleration, tails less speed but a signature double jump).
DLC:
I think that upgrading AT's to playable fighters is a pipedream of a lot of people, and waluigi certainly would help the Dlc season to start with the right foot, plus honestly waluigi doesn't have to be mad interesting, he only need to be sightly awkward and defensive, which means that you can use that free design time into designing the more complex DLC. upgrading a very popular AT into aplayable fighter is a great way to start a DLC season, and is very fan pleasing.
BOTW Champion: Either Urbosa or Mipha. BOTW was insanely popular, kinda made ripples in gaming and helped cimented the switch as a strong contender, although we already have BOTW link, i do kinda wish for a little more
. honestly there is a lot of potential moveset and this 2 are the more popular (although Revali comes close, but we already have a blue cocky bird XD), as for the champions dillema you can easily put them on the champions Final Smash, and maybe give the titular champions some of they special skills or assistances. Honestly, this one is more a personal pick.
ARMS Fighter, assuming that Nintendo is still invested in arms by that time. moveset potential, made some noise on teh switch, too new for base roster.
XB Chronicles 2 / Fire emblem Houses : when this character works begin, FE houses will likely be out and we could know if it was a super hit, or just a good game, or a flop, XBC2 did nice, albeit sightly niche, both of them have characters with potential fun movesets, both of them are switch tied titles, etc...
Solaire: Another personal pick, i hope that by that time in teh future, DS 1 remasterd would have released.... (like... pretty please ._.) and been a hit on the switch. That being said, Dark Souls, Monster Hunter and Dragon Quest are IMO the only japanese titans third party left that arent in smash (mayyybe kingdom hearts?) but as my pick, i go with Darksouls
Crash: seems that Crash is doing pretty well, and at that stage there would be plenty of time to gauge how impactful was his revival, this dlc spot would be used by a western Third party star, in contrast with the japanese one up there, and i feel that Crash will be a strong contender for this spot. Rayman, Steve and maybe Banjo Kazooie could also be contenders for this spot.
With the second DLC wave i see the cementing the Swicth side of the roster, although the only possible contender i can predict so far in teh future is an 8th gen pokemon. that probably would have enough screen time to gain popularity. likely the other spots would be for games that we still don't know nothing about.
As for Lyndis, i think that this dlc wave may also have more niche yet super popular newcomers, thats why this may be bomberman time to shine as a third party star. this in part as im predicting that some of the Ridley, Krool, Snake, Simon Belmont, Ashley and Waluigi support will bleed to these characters, making them super popular for newcomers. although obviously, thsi is pure speculation.... as, like 99% of this posts anyways XD.
EDIT: just realized that i totally forgot Bandana Waddle Dee was a thing XD. just put him on honorary mentions, and if he is not a fighter on base roster, more than likely will be in as an AT, which will make him eligible for our ExAT promotion program...
SECOND EDIT: I also think that Isabelle chances are rather high.... although i don't know if im 100% convinced for her as an echo. maybe for second wave DLC after Animal Crossing Switch is released?
THIRD EDIT:
Dark Samus : Same body as Samus, has enough different moves
And thats exactly why i don't think that Dark Samus as an echo would work too well... Has enough different moves is actually detrimental to an echo status, where they want to be as similar as posible. and thats why i Insist that Dark Samus could work as either luigidfied clone (Pichu) or Semiclone (Wolf) instead of Echo (Dark Pit).