Looks like they're not going with wrestlers pulling double duty this year. Unless Bryan makes a surprise appearance in the Rumble and wins, which I wouldn't completely rule out.
Him not being in the Rumble could turn out to be a positive thing if they've decided to have Bryan be the one who gets the match with Triple H, after all. Punk could end up going the distance and winning the Rumble and defeating Orton for the WWE World Heavyweight belt. Eelsewhere, Batista could end up in a match with Lesnar (no title involved) while Undertaker faces off with someone else (Sting if he really does sign.) Cena is rumored to face off with Wyatt, etc. This could be how the card works itself out. Keep in mind that Undertaker/Bryan is rumored as a possibility for Mania, too.