I think Minecraft may show up in the next direct, but whether or not we get Steve I'm not sure. Other people have been saying it was silly to expect a Smash announcement as it would overshadow the convention (so I guess I was dumb as I was hoping for an announcement Embarrass).
tbh I don't see him (or any character) affecting another's chances.
I just don't see it happening. I've already suggested that a Mii Fighter costume(with Steve's head being a mask) would be the best way to rep Minecraft since the character really brings nothing interesting. And I think a convention devoted to Minecraft would not have been overshadowed by a Smash announcement. On the contrary, I think the convention hall would've erupted bigger than Mt. St. Helens. I think Minecon was Steve's "one shot" and it didn't happen. And yes, he would have affected other character's chances. Specifically Banjo and Kazooie. Both are owned by Microsoft. Nintendo's not going to shell out the money for both, and Banjo & Kazooie have been requested like crazy.
To be honest, I see only three or four unique fighters left, then maybe three or four echoes. My predictions are:
1. Shantae. Even if she has a lower chance than some others, her chances are incredibly good for an indie character and she's my most wanted.
2. Geno. Everyone and their mother wants him and I think he could be pretty cool, even though I've never played Super Mario RPG myself.
3. Banjo & Kazooie. Probably the most talked about possibility and I hope it happens. I think they'd be neat, though a bittersweet reminder that there will never be a Banjo Kazooie game on a Nintendo platform again.
Echoes:
1. Dixie Kong. I think a unique fighter would be better, but I can see her working as a Diddy echo, and lots of people want her. And yay for more female fighters!
2. Shadow. I don't really care one way or another, but I see this happening.
3. Ken. Same feelings for Ken as I have for Shadow.
NOT GONNA HAPPEN:
1. Skull Kid. Sorry, he's not going to be a fighter. They took what would've been a fantastic Final Smash for him and made it an Assist Trophy. With that in mind, I can't really come up with anything for him.
2. Doom Slayer/Doom Guy. I just can't see this character transitioning into Smash Bros.
3. Goku. It hurts my brain that people ACTUALLY voted for him in the ballot. To quote Grant from Team Four Star in one of his few lines in DBZ Abridged: "Yeah, **** Goku!"