N
Chance: 0%
I don't usually give 0% to Nintendo characters, because as long as they are Nintendo, they have a shot. BUT! N isn't going to fight alone, Transformations deconfirmed, he's a 'pacifist', he's Gen 5 and a human character representing Pokemon without using Pokemon(who are, let's be honest, the main attraction OF Pokemon) means N getting in seems incredibly unlikely.
Want: 0%
I also don't want the annoying social justice warrior chump. I didn't even like him that much in Pokemon Black and White. He might of been one of the few developed characters in the series, but that doesn't translate well into a game about kicking the teeth out of your enemy...especially when he's a so called 'pacifist'.
Only Popular Newcomers
Chance: 0%
Not happening. We're going to fail at getting one of these at very least; Ridley, K. Rool, Isaac, Shulk, Takamaru or Robin. That's not taking into account the incredibly unlikely wants of Banjo-Kazooie or Bomberman either. I'm excluding them since they're impossible desires(especially Banjo). I dare say we'll get Palutena and Pac-Man, but those are the only two I'm completely convinced on.
If that Sal leak is to believed we're getting Chorus Men too. I don't really put a lot of stock in any leak, but I can see Sakurai giving us another character we didn't see coming, because he's done it at least three times already with Wii Fit Trainer, Rosalina and Greninja, and arguably a fourth with Villager(whom people presumed unlikely due to Sakurai's own words). It doesn't have to be the Chorus Men, but I honestly see us getting at least one more newcomer very few people saw coming/wanted.
Want: 50%
Smashboards wants=/=my wants essentially.
I care little for Palutena, Shulk and K. Rool and I downright
hate the idea of Takamaru. I only want Ridley for the fans who have waited so long too and have no personal stake in his fate at all.
Isaac, Robin and Pac-Man are the only ones I can genuinely say I want from our list(again not counting the two unliklies of Bomberman and Banjo whom I adore) but Isaac is kind of up in the air, and I sadly can't see Robin getting in over Chrom. That gives me Pac-Man as the only one I have any faith in, and that's mostly due to circumstances. If we count Dixie as a popular newcomer, you can throw her in with Isaac too.
If we get all of them, I'll be satisfied albeit surprised there was no other oddball.
Predictions:
Chrom Assist Trophy: 10%
Most are expecting him to be the FE character of choice. If by some miracle he's not, he's going to be an AT.
50 characters: 33%
Current character count: 29.
+
= 42
Working on the presumption that we don't get Snake, Squirtle and Ivysaur as standalones we'd have another 8 newcomers(or returning veterans) yet to come...unless I missed anyone.