Just give me the most autistic Subspace Emissary possible, like have it open with an epic battle between Sephiroth and Minecraft Steve and make it increasingly autistic from there. I want the most autistic possible campaign, as this is the most autistic series in the world.
Can it go back to being mute? I can't perceive the level of Pooh's Adventure cringe that would arise if they gave that shit dialogue. Anyway, another subspace emissary-type story could work although I would prefer it if they didn't do the whole trophy thing and just have the characters get knocked out when defeated.
Too bad Nintendo are little bitches about having a mode like SSE be in any future titles because "THE CUTSCENES WILL LEAK ONLINE NO SPOILERS!!!!!!!!!"
That's the kind of shit I've come to hate about Nintendo. Its ridiculously petty and needlessly denies people some unique moments and potential memes.
Personally I would like to see more Nintendo characters in the game, as opposed to third-party characters. Characters like Waluigi, Geno and Midna would all be pretty cool.
I really dislike how excessively large the rosters are in the more recent games. I know Ultimate's whole shtick was "EVERYONE IS HERE!", but it makes it really apparent that the games were more fun with a more contained roster. A future game should take notes from Brawl. It was the peak of SSB in terms of features, it didn't feel gimped despite having a smaller roster than the following titles. (The gameplay is a different story, they could alter that.)
I think the roster has gotten way too large and has too many pointless characters, like FE clones/echos, too many 3rd parties, or characters that don't do anything interesting or unique when they could just be alternate skins, like Dr. Mario, Toon Link, Young Link, etc, or making characters that were split into single fighters again like Samus and Zelda to try and prune the roster. One of the things I like about the series is how it took relatively obscure and forgotten characters in the west like Pit, FE characters (which looking back now was probably a huge mistake for not just smash but for FE too), Game&Watch and ROB (and I guess BanjoKazooie to a lesser degree since it always had a strong fanbase) and made them relevant again. Kind of hoping they go back to focusing on 1st or 2nd party ips or Nintendo exclusives and dig up some long dead characters to revive, like the other racers from F-Zero, Onigashima's lead duo or Ayumi Tachibana. Overall, I just dislike the popularity poll aspect of it and just want to see random characters nobody expects be thrown in with fun movesets rather than hear about how shocked everyone is that another popular IP or Master Chief made it in.
As for 3rd parties, I would honestly prefer to see Sony and Microsoft make their own smash clones (like a better version of Playstation All Stars Battle) and bring back some of their forgotten IPs for those again. I guess one autistic thing they could do is have Nintendo develop the clones and allow for some sort of compatibility so players can fight characters from the Playstation and Xbox games in online matches. But sadly there's way too many things standing in the way to keep that from ever happening.
Another change I'd like to see is how they handle stages. I honestly hate how most stages are just floating platforms that travel around a non-interactive backdrop.
Throw in Shrek and Goku while you're at it.