With Sheamus being announced as part of the 6 man tag team match with Cena and Ryback against The Sheild at the Elimination Chamber Pay-Per-View, I think the final three members in the No. 1 contender Chamber will be Jack Swagger, Kane, and Mark Henry. And you know what, if Henry ends up in this match, I'd say his chances of winning are DAMN good!
I don't see Mysterio or Swagger winning at all. I'm still convinced it will be Orton vs Sheamus at WrestleMania, and Kane & Daniel Bryan will either tag.. or fight each other at the event. That would leave Mark Henry as number 1 contender. Assuming Alberto Del Rio makes it past Big Show, Mark Henry would be another massive challenger for him to conquer, and I would love it. I doubt they put Henry over, but after Del Rio successfully defends the title in a hard fought bout, maybe Ziggler cashes in and takes advantage of the fallen champion?