I've figured out Cena's next feud

[Sparvid]

From post-Smackdown dark segment:

Post-match, Regal got on the mic and praised Cena, noting that Cena is somehow able to come back from injuries so quickly, that Cena is a great guy and while Regal isn’t as active in the ring anymore, that they both have history together. Regal then attacked Cena, which got a huge ovation from the crowd. Regal played up to the crowd, however Cena got back to his feet and hit an Attitude Adjustment on William Regal and then another one on ring announcer Tony Chimel before exiting the ring.

From Minehead, UK house show:

WWE Intercontinental Champion Curtis Axel beat R-Truth to retain the Inter Continental Title. After the match, Truth hit his finisher on Axel.

This takes us to intermission, and things get crazy. Tony Chimel starts making sales announcements. Curtis Axel gets up and interrupts him and demands to be announced as "still your Intercontinental champion, Curtis Axel." So Chimel hits Axel with a Stone Cold Stunner. Then Nikki Bella came bouncing out and kissed Chimel to the jealous reaction of all men in attendance!

TLC main event: Cena vs Tony Chimel!

[EoE: Well There's Your Problem]

May as well try. He was Kennedy's first feud in the company, and Chimel put him over so well that he was considered a main event waiting to happen.