Like Irken said, Jericho vs Taker is the only match there that looks likely at the moment.
Sin Cara isn't ready to main event WM. He's still adapting to the WWE style, and from what I've heard, WWE are feeling his progress is slow, so a match with Mysterio this year is unlikely IMO.
HHH vs Miz 'as part of a long feud' seems unlikely too, as I don't think HHH wants to return to the ring full time.
Orton vs Del Rio doesn't make sense. I'll bet Orton is WHC at mania, and i'd like to see him face Christian.
I don't even understand what they're trying to say in the 'Around the ring' bit at the bottom, apart from stating that DeMott is teasing an in-ring return.