Kamek
Type of Character: Newcomer
Franchise: Yoshi and/or Mario
My Level of Want
Kamek would be my choice if there must be a 2nd rep for Yoshi. Baby Mario and/or Baby Duo would work fine with me as well but I'd prefer who is basically the recurring villain. I don't think Kamek will be anyone I desperately want anytime soon though. It's true he's not quite that big of a name.
Estimated Chance
He's already a stage element on the NSMBU stage. I doubt they make him playable. And even if that wasn't against him, he's just not popular enough within the Mario series and Yoshi doesn't necessarily need another rep.
Rayman
Type of Character: 3rd Party Newcomer
Franchise: Rayman
My Level of Want
I'll just say I'd like him if he was in. Rayman's been around a decent amount of time and mostly on Nintendo systems even. My younger brother was also a big Rayman fan so it'd be nice to see him get in for him.
Estimated Chance
If any 3rd Parties end up playable in the game through the Ballot, I think Rayman has the best chances. Not even just counting the popularity he'll recieve thanks to that Artsy Omni "leak" back in Feburary: Rayman ALREADY APPEARS IN SMASH IN SOME FORM. Just as a Trophy mind you, but that's big on his chances because even though we've been explained why Rayman trophies were in there before (It's because in some odd legal mumbo jumbo complication, Rayman is owned by Nintendo. But only in Japan) it would make more sense to everybody regarding the trophies if Rayman was a fighter. His chances exactly depend how much 3rd Parties are eligible which it has been said that this isn't just Nintendo characters only. So for all we know, Rayman might be one of the frontrunners to get chosen and the very convincing leak from only a few months ago may actually come into fruition later on.
Captain Toad/Toad (Just to fuse them together abit)
Type of Character: Newcomer
Franchise: Mario
My Level of Want
Pretty high, even if only to satisfy a bit of an OCD factor of "The Big 8" of Mario (Mario, Luigi, Princess Peach, Donkey Kong, Bowser, Wario and Toad. Bold is already playable in Smash). Plus you could finally have an 8-Player Smash between the Mario Kart 64 roster. I don't care if it has to be Captain Toad or regular ol' Toad. Just any Toad would do to feel like the Mario cast can finally be complete.
Estimated Chance
If we get any extra characters for the Mario series through DLC I think it will most definitely be Captain Toad. Because it'd be the perfect storm of Nintendo promoting Treasure Tracker and some form of Toad has been wanted by fans in Smash for a long while. So having Captain Toad in Smash could provide a good compromise for what Nintendo and Fans want. If Nintendo wants a new Mario rep through DLC I would almost guarantee you then that Captain Toad will be that representative.
Bandana Dee
Type of Character: Newcomer
Franchise: Kirby
My Level of Want
Eh, I'm ok with where Kirby is currently. I don't feel a fourth is necessary for Kirby at the moment. But I'm not opposed to Bandana Dee. If he's in I'd get him like most characters.
Estimated Chance
Probably the #1 Choice for Kirby rep DLC. But that's only if that happens. Sakurai has limited himself on Kirby before (Even if he was a bit less so on Kid Icarus :V) as it took 3 Games just for Meta Knight and Dedede to come along in.
Shovel Knight
Type of Character: 3rd Party Newcomer
Franchise: Shovel Knight
My Level of Want
If Shovel Knight really did become playable, I'm pretty sure my reaction would be one big giant "Why?". He's just too recent and the main reason there's this huge bandwagon for him on places like Reddit. Is because he had artwork done by Artsy Omni who did the Rayman leak back in Feburary. And if we just had to have an indie-esque character in the game. There's another that would fit better and has been around much longer.
Estimated Chance
Shovel Knight is going to be proof that Popularity isn't everything in the Smash Ballot. He may have the bandwagon and even support by Yacht Club games. But Shovel Knight has too many obstacles in front of him despite it. This ballot is not a popularity contest, it's a suggestion box. And I suspect any headed toward Shovel Knight will be tossed away with the many other 3rd Parties that likely don't stand a ghost of a chance of getting in Smash.
Shantae
Type of Character: 3rd Party Newcomer
Franchise: Shantae
My Level of Want
This was who I was referring to when I said there was one character that's still indie-esque that both fits better and has been around longer. And I wouldn't mind Shantae getting in myself as she's actually been on Nintendo systems since the Game Boy Color days. She's a half genie capable of shapeshifting into Animals that would be good for Moveset potential. Plus it adds another Female to the cast that seems to have been surging within this iteration of Smash with all the new female characters and/or alts.
Estimated Chance
However even as possibly the character that's indie-esque that has the best chances out of all of them. It's still pretty darn low. I'm not expecting Shantae to have that much more of a chance then Shovel Knight actually has. Rayman is still the best bet 3rd Party wise.