Y'know... there's no rebuttal to the sticker argument yet. You may think that Diddy Kong does, but he appeared multiple times in-between Brawl and Melee, same with Ivysaur, same with ROB, same with Wolf. It doesn't deconfirm Vaati. But you can't give a counter-argument for it as the actual argument is "Sakurai won't reconsider a character completely neglected from the previous installment (really just talking about Brawl) if they have not re-appeared, and are not retro characters". Obviously, if a character gets in a game between installments, they have new merits, a new reason to be added. They have a chance to come up again and be considered. And retro characters aren't retro if they keep showing up, and are usually surprising, so that's why it will never apply to them. Like I said, it doesn't mean he won't be in, but you can't just say "no argument here because of ______." As it has never happened before.
And a re-release is not a new game, if you're going to say that. You don't see the Anniversary Edition with it's own place on the timeline, same with remakes, remakes don't count as their own game too. Just wanted to make that clear. And if any cartoon Legend of Zelda character make it in, I want it to be Vaati, but I would prefer a non-toon character. I'm a fan of Midna, Ghirahim, and Impa, but Vaati and Tetra could easily be made into great 5th reps. Overall, I just want more Zelda stuff. It's my favorite.
Plus, he's very unique, I'm not sure how wind would work as a move... but I'm sure it could... he could even have electricity and his other many forms. But, really, almost all Zelda characters are unique (exception: characters like Toon Zelda, Marin... all the characters that function the same as the triforce trio)
Only Zelda character I actually DON'T want to see is Tingle.
Either way, Vaati NEEDS some representation in Smash 4. Ezlo getting a sticker over him was insulting. (Who liked Ezlo?) Skull Kid upgraded from having 2 stickers to being an assist trophy, so it's possible to get more representation without a new game. I just wouldn't bet on playable, as Skull Kid did extremely well on polls (especially the ones here I think) and is equally recurring.