I was hoping like the majority of you that Cena could win and rid the WWE of the Nexus.
I wasn't hoping for that. I want Nexus around because their existence has caused a major change in the way RAW is presented. Their arrival got everyone on the roster (for storyline purposes) thinking about Nexus and who they might attack next.
The thing is, it was getting old simply watching them attack people; a change was needed and it's now here. John Cena being forced to join is a shot in the arm to Nexus and makes them exciting again.
At the same time, people have been speculating whether Cena would be undergoing a heel change in the near future. Now, Creative can watch the fans reaction to Cena in his new situation. If he joins Nexus in doing their dirty deeds, management can gauge if an "evil" Cena is working or not. If it isn't, they can have Cena destroying Nexus from within..... and he can go back to what he has been the past few years.
But if fans do enjoy seeing Cena as a bad guy, a permanent heel turn can be arranged. I think it's obvious that, one way or another, Cena isn't going to be a member of Nexus for long. He's got too much going as an individual superstar to keep him in a group forever.
Also, having him turn permanently bad while a member of Nexus would be a face change that makes sense. Big Show, for example, turned from heel to face overnight..... for no discernible reason. One day he was scowling, the next he was smiling. In Cena's case, we'll watch the turn as it happens.....
if it happens. If he's becoming a heel, we'll see it coming.
I think this is great. Hopefully, they'll make a whole program out of it rather than getting Cena out of Nexus quickly. Some amazing possibilities abound.