First off, Jordan Adams is a moron...yeah, Triple H's 1.9 ratings on Smackdown are certainly bigger than the 3.6 Cena's gettin' on RAW...gidget. Oh, and if you claiming to be older, why do you spell and punctuate like a 10-year-old? AND you're a Cena mark. OK, done with that.
To the topic at hand, Cena would indeed be quite the cou TNA would need to compete, but you could take Cena out and easily put in a Randy Orton or Undertaker...matter of fact, there's someone who's contract runs out just after WM26 who's HEART is BREAKING to take some time off and maybe work a lighter schedule...
Shoot, who am I kidding...all the current main eventers are staying with WWE cause Vince said so, and no one crosses the boss!
Unless Dixie has a money press coming out of her Carter, they are all staying put.