TBH, I was totally expecting Cena to trash the belt to lead into next week, and yes I do think it's a better idea.
Personally I would have kept Punk off as long as crowds were chanting his name in his absence (which happened tonight). As soon as it simmered then you bring him back (though he should still be involved at Summerslam)
Of course there is an easy reason Punk comes back so soon, with Punk's issue of caring too much about wrestling causing him to confront Cena holding a belt that shouldn't even exist.
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HBJ - The Voice Of The Voiceless
~Project 1000~