And I’m just gonna sit here ignoring all the theories and keep rooting for any combination of Nightmare, Ryu Hayabusa or Terry Bogard.
There’s also Mii Costume theory.
That's the other one I was trying to remember--the 3 C theories. Out of all of them, Mii Costume theory actually makes the most sense, though I don't think it's necessarily the case. I do see Mii costumes coming with characters, and out of all of the previous companies, I think Capcom is the most likely. I actually doubt that Bandai Namco will get another character--they worked on the games, and the last two base games only had one character between them, I think because there's not many characters to choose from. Personally, I'd prefer Agumon. But Microsoft being in means that companies outside of returning ones can be involved, and would probably come with new Mii costumes with them (I feel like a Minecraft Mii costume is the most likely).
So if I were to rate the 3 C theories.
1. Mii Costume theory - not predictive, but makes sense that it will happen to one or more returning companies
2. Color theory - if true, it is purely coincidental, and they took advantage of the characters having different color schemes to advertise--also vague, since what colors go with what characters is arbitrary
3. Companion theory - Kazooie is not a companion, if anything she's the primary character who does all the work. A companion, in my mind, goes along with the character even if they're not part of the action. Kazooie is a part of the action.
EDIT:
Never been this torn over starters
Scorbunny, Sobble, Scorbunny, Sobble... *whips head back and forth* I'm a Scorbunny man, myself.