*pulls out long list of wishes and hopes*
well, there are MANY I would love to see, from guys you probably don't even know to some generic ones. I won't do characters who have only been in spin-off games as playable character (so no Waluigi) nor characters from a franchise that doesn't originate from games (so no DBZ or anything)
1: Soma Cruz.
One word: Souls. In his games (Castlevania Aria of Sorrow/Dawn of Sorrow) Soma has the Power of Dominance. This allows him to drain the soul of an enemy he defeats (random chance) and use that soul as a weapon, utility, defense or a straight pure bonus. Thanks to this, Soma has so more weapons and powers in his arsenal than Mario and Link COMBINED, allowing for a lot of possible sets. It would be amazing to see a Castlevania character in smash (I have more on my wishlist, but this one's on top).
2: Ezio Auditore.
Before you say "so you want the generic assassin who's probably your favorite in smash.", hear me out. Ezio has been on a Nintendo Console in the past. a 2d sidescroller version Assassin's Creed 2 on the DS. now while I would personally like Connor better as he is my favorite Assassin of the franchise, this one would be more likely (I've played a bit of the game and ngl, it's pretty good). He could have an infinite ledge hanging ability as the assassins spend quite a bit of time just hanging on. He would have a Down Counter like most FE Characters and generally be a speedy balanced Swordsman with some projectiles like Smoke bombs.
3: Alucard
I told you there were more Castlevania characters on my wishlist. And the son of Dracula is one of them! While I haven't played the game where he stole the show, I HAVE played some of Julius Mode in Dawn of Sorrow. this is where you Eventually recruit him as a Playable Character. Another Swordsman (take a guess how my Main character fights) that could be either a Marth or Ike like character (granted not as big of a sword).
4: Simon Belmont.
Oh, look, a Castlevania character! Now Simon would be a funny one as he would be the first character in smash who would wield a Whip. There are enough sets they could create. And then my Favorite part: THERE'S MORE THAN ENOUGH BELMONT FOR SKINS. Heck, you can ever throw in Jonathan Morris in there.
5: Dante.
Now, I would love to put Shanoa from Order of Ecclesia, but 3 Castlevania guys should be enough. So why not add a third guy with a Huge Sword. Cloud and Ika are kinda lonely. I've not played any DMC Games, but I'm sure there are enough things they can do with him.
6: A Tekken character.
Explanation: Not needed. (it's one of my best friends favorite game).
so yeah, those 6 should be good