This isn't really news, but The Undertaker is set to make his return to Monday Night Raw the night after Elimination Chamber. That's also the night the WWE Network goes live, and they will want all the major stars to prepare for that huge debut, with all feuds on the table for WrestleMania at the same time. Look for major ratings that night, which don't matter in the least, but sponsors will be happy.
The current plan is still Undertaker vs. Brock Lesnar this April. They seem on track with that, having Brock take apart everyone in his path. Mark Henry and Big Show are both gigantic obstacles, literally, and when the Deadman returns it will be because "nobody can stop the beast incarnate." That's how the match will be booked, and that's smart. Lesnar has crushed 'Taker before, in one of the most brutal and bloody Hell in a Cell matches, no less. But this is WrestleMania. Despite Lesnar easily being in better shape, and everyone knowing that in reality the former UFC Heavyweight champ would go over, this is WrestleMania and the decision is inevitable.