Now, just a rumor, of course, but there are those out there who speculate that the Hulk is moving from the Avengers to the Guardians. Impossible, you say? Hmmm. Let's see what they have to say first.
First of all, this rumor rests on another rumor that at the end of Avengers: Age of Ultron, Hulk will be trapped in a spaceship and shot into space. Now, I know this sounds like a set up for PLANET HULK, but Whedon and Ruffalo have both shot this possibility down.
So, why else would you shoot Banner into space? Well, some have claimed that is for the Guardian's sequel. Now, FIRST, Guardians has to be successful. And, although I'm in the camp that says it's gonna blow our socks off, it's still a wait and see to find out if it's sequel worthy. This and heavy reliance on the above Age of Ultron rumor and you have a lot of ifs.
I'm not buying this at all. Number One, the Hulk seems a bad fit for these criminals, although he's a misfit himself. Number Two, Ruffalo will probably not be happy with, once again, being a side character. Hell, the fans aren't going to be happy with that! What the fans want is a stand alone; a great writer that explores what being Bruce Banner means. Or, am I wrong? Is all we want for the green goliath "HULK SMASH"?