Sora in Smash
I'm not really into Kingdom Hearts or Sora, so...meh. But people are gonna clamor for it. Is it a proper last character...I dunno...but I don't think the Smash roster will ever be like this in a future release...if anything, Smash Ultimate should just continue on the Switch family as-is indefinitely. I would be content with Ultimate being a continuing service instead of making a new one...just occasionally add new Smash packs with more characters. I'm too idealistic about that, ha ha.
Kingdom Hearts on Switch
Yes, it's cloud...yes, that seems lazy. But I think there's more to the lazy efforts. Besides factoring effort, time and limited Switch card capacity Square Enix (of America, especially) has this hard-on for aligning itself mainly with Sony/PlayStation to the point they won't sully that (FF7 & KH, especially) by bringing real physical retail versions of some games to Switch. I had to order FF7 on Switch from Asia for a friend to get a physical copy of it. Why wasn't that available at retail in the USA? Either way, it's still coming...which woulda been really dumb to add Sora to Smash without proper Kingdom Hearts games on Switch!
Cloud Gaming on Nintendo Switch Online
Nintendo will be announcing more details about the NSO Expansion Pack before it launches later this month with N64 & Genesis added to their service. This service will cost more and I like to think that they will also add some kind of cloud benefit. I think instead of paying for cloud games individually they should be offered on NSO in some capacity. I think more higher-end games should be added to Nintendo's cloud gaming service that can't be done natively on Switch. Newer Resident Evil, Yakuza, Final Fantasy, Assassin's Creed, GTA, etc games. Together with the new Switch OLED dock with an ethernet port (and potentially 4K output) Nintendo could make advances with their cloud games to PS5/XSX levels.