I don't see it being Rock this year.
I mean it would be perfect for the whole head of the table fight but with no crowd. I also read somewhere Vince talking about it's too early for that match yet. I think they're saving Rock for WM Hollywood.
I know people don't want to see it but I can see them booking Roman vs Cena
I also know everybody wants Big E but I think Kofi winning The Rumble is more likely
Goldberg is possible.
Daniel is VERY possible but if I had to pick one prediction I would guess it's going to be Drew again.