Triple H will probably be the one to re-introduce Batista to the 'WWE Universe.' It only makes sense given their history, plus I could see them already planting the seeds for Batista/Orton by having HHH tell Batista that there's no match that he would love to promote more as the headline match of Wrestlemania XXX than a match between he and Randy Orton, the two guys he and Flair took under their wing back in the day, for the WWE World Heavyweight Championship. Then the segment somehow results in a big pre-Rumble brawl probably beginning with ADR interrupting Batista and getting in his face (as a way of jump starting a rivalry between them that is rumored to result in a match at Elimination Chamber), followed by other Rumble participants running out and getting into it with each other in a big free for all.
Hopefully it's a much better ending segment than that god-awful promo Cena cut on the go home Raw last year prior to the big brawl that ensued.