Gathered my thoughts a little and want to share a little of how I think things stand, and why you all should get hyped, regarding DK in Smash.
The fears about getting virtually nothing new beyond what we've seen so far are overblown, in my opinion. This fanbase has a storied track record of taking Sakurai's cautionary statements and going full-on doomsday...like when he said "Brawl's roster was pushing the limit of feasibility" and people thought there might not be -any- newcomers in Wii U, or when they instinctively thought the characters Sal Romano leaked were the only newcomers for similar reasons. We're coming off a pattern of consistent jumps in newcomer counts, from 14 new guys in Brawl to 21 in Wii U, DLC included. Clearly Sakurai would prefer people not get their hopes up for -that- level of an increase again, but that doesn't mean it's literally just 2 or 3 newcomers left. 6, 7, or 8 not counting clones is probably more within range of what's realizable here.
As to who those newcomers will be, I lost count of the number of times Sakurai specifically framed a design choice as "back by popular demand" or "because of the fan outcry." Fan support is a weird concept among speculators, in that they usually take it either to two extremes...dismissing anything that comes off as remotely popular online as something only "the vocal minority" cares about (whereas their ideas, framed as coming from "the silent majority," are the obvious alternatives), or getting into a circular pattern of hype to the point where the mere possibility of the thing you personally want happening NOT happening is ludicrous. But here, the desire to cater to fan wants 100 percent played a factor with Ridley's inclusion and the return of all veterans, and even appears to be affecting the revamps to some veterans (how many times have users demanded Ganondorf's sword or Wario's shoulder bash?). This alone does not guarantee someone like K. Rool, but holy hell does it give him a more persuasive case as likelihood goes. It certainly makes the idea that they'll look at support for him specifically and go with Echo Funky because "DK Rep" that much more laughable.
It's that apparent approach that makes me more comfortable looking at how DK as a series has been handled in what we've seen of Ultimate. Otherwise, I'd say it's like Wii U, where there are nods to the franchise lore (DK's roll, his bug-eyes, Kritters) but nothing more. All rising action and no climax, is the G-rated way of putting it. Here, there's more of the same. A few examples:
We have our very first Donkey Kong Country 3 remix in Smash, and outside of Squitter's trophy listing DKC3 as a game of origin (by necessity more than anything), the series' only reference to DKC3 period. People have said it's Bonus Room Blitz from DKC1, not Dixie Beat from DKC3, which is partly true because the latter is a remix of the former, but if you listen closely to the instrumentals, you can hear this as a remix of a remix, if you will. That's fantastic news for anyone interested in any of the following: Dixie, a Baron K. Roolenstein costume, a helicopter pack recovery, a Kiddy Kong trophy, Brash the Bear being secretly responsible for the events of Subspace Emissary 2.
Here are the three tracks for a comparison:
DK's moveset has even more changes to be more faithful, and from across the series. His F-Throw carrying animation now resembles that from the Retro games, when he picks up a barrel or enemy with one arm. His Final Smash also appears to be a hybrid, taking the punching and flame effects from Jungle Beat (an "irrelevant" game no less) and the hit frequency of him beating up a boss in Retro's games.
Oh, and to say nothing of how absolutely beautiful Kongo Falls looks, they brought back the Klaptraps and gave them a new model, rather than reusing the ones from Melee or the GameCube Mario spinoffs. These guys were actually pretty faithful back to Melee; just like in DKC, the red ones jump at you on Kongo Falls, and the blue ones just swim through the water on Jungle Japes. Here's a potato-quality image from the tournament stream:
Anyhow, it really confused me when a few people in NYC saw my K. Rool shirt and said 'sorry' to me, as though Ridley being in the game disconfirmed K. Rool by default. This wasn't our feared scenario of Ridley plus five advertisements, with K. Rool nowhere to be seen. That would have been really bad news, but we got something totally different. Maybe Rool still won't be in, and they want to have him being in a new game as a needless barrier to Smash entry, but here's what I envision right now. They announce a new DK game by a non-Retro "DK team," referenced as having existed for years in
this interview with Davide Soliani, sometime later this year (if they can announce Odyssey not at E3, a DK game truly could drop at any time). They show Kremlings and K. Rool as returning there, and then cut right into a Smash trailer where his reveal happens. Very realistically he gets shown off, and then Dixie turns up too as a cherry on top. Diddy indeed had
his tail jab replaced, and he only ever had that move and a ledge attack as far as tail moves "Dixie couldn't do" anyway. She might not get the technical "echo" classification (Dr. Mario and Pichu don't either) but like them, she can still be a last-minute inclusion, maybe differing just in her recovery and/or dash attack, even if she has the potential to be fully unique (hi, Melee Ganondorf).
Let's wrap this wall of text up. If Ridley's handling is any indication, and we have a little luck on our side, our years of support will culminate with one hell of a brilliant and faithful reveal. Or an AT, but that's a bridge we cross when we get to it. All it'll take is keeping up good spirits a few months longer.