He keeps teasing it by saying he'll die trying or whatever, but with there being one Raw left before Mania, I don't see him adding that stipulation. I would like him to stay around if he would put over some younger talent (ha). That obviously is not on the radar any time soon so whatever.
I just don't think Triple H/Taker should close the show, not with Rock/Cena going down. It's going to end up killing the crowd the same way Rock/Hogan took all the energy at X8 or when HBK/Taker took it at 25. And judging by the sub par reactions BOTH Triple H and Undertaker have been receiving during the build to this match, it's not looking good. It is very possible this could be a complete flop of a match, not because the match itself will be bad, but both men are limited and old. Not to mention the amount of ring rust between them does not help the situation. I think it's a bit of a gamble closing the show with it.