[Hulk sequel movie]

Of course the movies aren't the comics. I don't even want them to follow the comic story of planet hulk. The wormhole was just an example of how they could weaken Hulk. With Guardians of the Galaxy similar elements will probably be introduced, so it wouldn't be that much of a stretch.

[Hulk sequel movie]

8) Can have the 2 personas split. Can have a Red Hulk (all the time after transformation).

7) In the Avengers he mentioned this, in the I am always angry line.

6) Thor is too.

5) Can't lose. As we seen the MCU doesn't play it 100% to the comics. I can see Red Hulk, Skaar, Armageddon.

4) Wasn't he controlled by Loki on the aircraft?

3) Doesn't all the heroes have to face the repercussions of New York. I would imagine in some way they all destroyed it.

2) So a solo Hulk movie won't have other heroes for Hulk to interact with?

1) Bad movies. Make one on par with IM1 and forget about it. It is possible.

 

 

After GotG has established the "space" part of the MCU and

Hulk once again fights the avengers (as seen in Age of Ultron concept art)

 they could go for "planet hulk" (but with more Banner and a story that's a bit different)

8) he doesn't need to be, that's what makes him interesting

7) he probably wants to be the Hulk when he's on a planet full of things trying to kill him

6) in the comics the wormhole weakens him so he can be hurt

5) he might actively try to escape the planet and get back to earth

4) he can be a rage monster on the planet, or he could develop or it could be a split personality, it doesn't matter that much and none of it makes it a bad movie. 

3) It would actually be interesting to see how the Banner and Hulk personas will work together to escape the planet. 

2) Skaar, or maybe even a Guardians of the Galaxy character (like Drax or Groot) could appear. They even already have the effects for Korg, from Thor: the Dark World

1) If people like Guardians of the Galaxy, then this will probably work too