RE: Wrestling
I don't think Punk is under any illusion when it comes to his fighting pedigree. His tenure in UFC will probably be short-lived with more losses than wins. But, hey, it's a win-win situation for all involved. UFC gets an ex-WWE champion on its books to use as a novelty act and Punk gets to keep his name in the limelight. UFC garners more interest amongst sport fans and attracts more casual viewers than WWE. If Punk plays his cards well, and providing he doesn't suffer any serious injuries while fighting, his name-value will certainly increase. As both Punk and WWE haven't ruled out working together again, his stint in UFC will probably enhance his negotiation position. I think we'll see Punk go down the part-time route with the WWE in a few years time - maybe then he'll get his Wrestlemania moment.