This. This so much. People act surprised that people are requesting third parties more when more of the “core” characters per series are in. Would I like Ashley to get in the next smash? Absolutely, but she feels far less important of a pick then day Ridley or K Rool were. I personally think that the combination of the doors being flung open for third parties combined with this has changed speculation into what it is now.
Obviously, this does not mean first parties are unlikely by any means. Including or not including echos, Ultimate did have more first than third parties as much as the purists might object. Likely, the split will be somewhat similar in Smash 6, with a slight tilt towards Nintendo as a result. Just don’t throw a fit when a third party gets in Smash when the series has been open to third parties since Melee.
Gotta say, pretty sure Dixie isn't tertiary: in her first game she's a main character and is a main character in the third DKC as well. She was part of the show, she was in both Mario Baseball games, made the DS version of Diddy Kong Racing and was part of the roster for the cancelled Donkey Kong Racing for GC and made it to Donkey Kong Barrel Blast, returned in Tropical Freeze...hell, Sakurai originally wanted Diddy and Dixie to be a duo fighter. She's popular in her series and in terms of Smash request, it's just that when Diddy got in without her everyone shoved her aside for K Rool. Now she's back at the top of DK request.
Not sure BWD counts either, considering how he's turned into more of a mainstay than a lot of the other requested Kirby choices out there. Like, it goes Kirby, King Dedede, Metaknight...and then Bandanna Waddle Dee. The rest of the requests are for characters who show up for a game or two and never come back unless it's time to make big nostalgia money.
Waluigi, despite never having his own game, has grown into something too big to be called that. If you made a Mario Sports game or Mario Party game without Waluigi in it, the backlash would be so fierce it would end up having to be formally addressed and no answer other than 'Oops, we'll add him later guys!' would be found acceptable. It's incredible that he wasn't added in Ultimate's base, but it just goes to show that even Sakurai can miss the mark occasionally. There is no way he misses the next Smash.
However, I will agree that a lot of the 1st party characters people want are lower on the totem pole considering who all we have already. While I think characters like Krystal, Isaac and Paper Mario really don't really fall into this either, I can admit characters like Ashley, Skull Kid/Impa/Midna, any version of Toad or any other Mario character that isn't Waluigi for that matter, seemingly Viridi/Medusa/Hades (no offense to Icarus fans, it just seems from my limited knowledge they grabbed the two biggest ones already), and all the really popular Pokemon who's popularity lasts throughout each generation are pretty much already in the game seem to fall into this category. This isn't even speaking of all the character who are the star of their own games, but their games are much lesser in scale, like Chibi Robo.
Not acknowledging this would be folly, and as a Geno fan I have to if I want to be honest with myself and others about his position, which is mostly due to fan demand but also the benefit of a legacy of starting off Mario RPGs.
This is like when Sakurai was dropping hints that DLC was ending after Pass 2 and for a long time, a great number of people chose not to give those insinuations the weight they deserved.
It's basically inevitable that Smash does not retain its entire roster next time they want to make a true sequel. And Sakurai has said as much more than once, most recently with this new interview. You don't have to celebrate losing characters, that would be kind of strange, but if you plug your ears that's just going to give you less time to acclimate to the eventuality.
This is actually way different. Sakurai has used this kind of language before when he already was working on another Smash, almost to a T. He's also brought up wondering if the next Smash could even do more or improve upon the last, and it always does. That is much different from Sakurai being abnormally insistent that Pass 2 was the end over and over again without prompt.
I'd argue that Smash doesn't need a true sequel just yet: it needs Ultimate to
BE ultimate. I know this will piss some folks off, but we have to face facts, and that is Sakurai is looking into the face of the long list of long-time Smasher requests and he barely made a dent. The best way to win over the leagues of people he disappointed with Byleth, Min Min, Pyra/Mythra (mostly timing here), a smidge with Sephiroth and Kazuya is to build off of Ultimate and just toss in another handful of characters from that long-time list. What people fail to understand is that long-time Smashers don't really hate these characters being in as much as they hate their 10-20 years of requests missing out yet again, so now that those character they didn't ask for are in, most of them won't want them removed as it's just less content.
Also, Ultimate has a huge lack of single player content, and needs it's multiplayer content brought to online. Why can't I play Custom Smash in a lobby? Why is Smashdown only offline? Same with Squad Stike, why offline only? Why is All Star Mode a sham in comparison to previous versions? People are asking for Break The Targets, Boss Rush and Smash Run to return. Why is WoL the longest Spirit Board/Event Matches with nearly nothing else for substance? We are still missing beloved stages and tracks as well, and there was a distinct priority to bring back the old instead of really create new, so having some more brand new stages and tracks added in would be pretty sweet.
Make the unbelievable lists that are just Magical Christmas Land levels of wish-granting come true. Lets make it so friends can do Team Battles with Mario and Luigi vs Wario and Waluigi; Make it so you can do Squad Strike and have Team 'Magic N' Swords' with Hero, Robin and Isaac; Let Square just dominate so Geno can fight Sora, Sephiroth and Cloud at the same time. Dude, if you drop Dixie, 8-Player Smash on teams could have Team Rare vs Team Square! Let people flip the bird to Death Battle and judge the climax themselves with Bayonetta vs Dante, or see who is the better space marine with Doom Guy vs Master Chief, or have the platformer battle royal with Crash tossing Wumpas at Mario, Sonic and Megaman...and then bump it up with DK, Rayman, Kirby and Yoshi.
The last thing Smash needs to do right now is go backwards and take from us, because it has yet to truly deliver upon it's promise due to it's timing, rushed development, and lack of delays.
Also, about a third pass, with all the names we've heard since way early on...as crazy as it sounds, it's likely that a third pass was temporarily considered but Ultimately (haha) rejected due to shared ideals about DLC outweighing the base game monetarily. In other words, names were likely brought up and considered for previous passes, pushed out while others were selected but kept in mind for more DLC later on, and then that DLC never came...with my theory being that production of the next gen Switch was going very well and Furukawa decided Sakurai and his team's best interest would be extending that love and attention onto a better console. Considering how early DLC would have had to been negotiated for to announce it in Nov and have it almost entirely released in a single year, and that we know Pass 2 was negotiated very early in 2019, it would make sense that it was brought up but denied.