Before you read any further, please understand that I'm not trying to predict what will happen, these are just some scenarios that I've thought up, and that I think would be cool.

Rick kills the Governor.
This one's really obvious, and I would bet it's probably the most likely to happen.
Daryl kills Merle for trying to kill Rick (or Carol).
This one I would love to see the most out of all of them. Daryl is my favorite character, and to see him pick sides between his brother and the group would just be pretty cool.
Merle kills the Governor because he is about to kill Daryl.
This one would be pretty awesome, as well. Just because Merle saves Daryl, doesn't mean he'd be accepted into the group, though, and that could make for an interesting scenario for Daryl - having to choose between his brother who saved him and the group he's survived with for so long.
Michonne kills Merle and the Governor.
It's obvious she doesn't like either one of them. And to be honest, who doesn't want to see Merle decapitated with a katana? Anybody? Show of hands? (Just kidding, I'm sure there's a few fans of Merle out there.)
Glenn kills Merle.
After what Merle did to Glenn (You know, letting a walker loose in the room while Glenn was tied to a chair?), I think it would be cool to see Glenn get his revenge on Merle.
Andrea kills the Governor.
Because the Governor's a jackwagon, that's why. And while I'm not too fond of Andrea (on account of her not having much common sense), I'll admit it would be cool to see her do something helpful for once.
Maggie kills Merle.
Seeing her take revenge for harming her boyfriend would be kinda cool, I suppose.

Well, that's all the ideas I've got for now. I'm hoping at least one of these comes true, although not a single one could come true. Leave a comment telling me which scenario you like the best, or telling me what a loser I am and how I suck at life. Hey, you wouldn't be telling me anything different than my mother already does... Just kidding, of course.

Thanks for reading!