There's still Cena, Eddie, Booker, RVD, Mysterio for the Rumble.
And for RVD, if you go by the reaction that he had tonight, then you could tell that he was a star in those people's eyes.
That is unless of course they foolishly put RVD/Rey in a tag match and leaven them out of the Rumble as well, which with WWE booking is entirely possible.
As for Undertaker/Heidenreich, whoever wins it will likely go on to the Rumble IMO, likely a late number.
Well, yes, that is possible.
And that would mark the first time the Smackdown tag team titls were ever defended at the Royal Rumble.
Both 03 and 04 had the World Tag Team titles defended, both years with the Dudleyz challenging.