It appears that Mark Henry has finally returned to save us.
http://www.lordsofpain.net/news/wwe/Mark_Henry_Back_on_the_Road_with_WWE_WWE_Kicking_Off_TTTT_Weekend_Photos_from_AJ_Lee.html
The issue, of course, is that Mizark is a monster heel, and they have like 100 upper-level heels right now, with Orton set to go heel also. So where do they go with a guy who was one of their hottest acts? There are logical answers (Sheamus, Ryback), but they're about telling stories, not logic.
Yeah, my first thought would be Ryback as well if they want to do an unstoppable v. immovable type match at Wrestlemania. I'm just hoping that Henry can keep up his motivation and quality when he's back from injury, because he can EASILY be slotted into the main event again now with so little depth on top.