One of the most prevalent fan theories surrounding the follow-up to Guardians of the Galaxy is that the film will feature the Hulk in some capacity, with some fans still hoping for a variation on the Planet Hulk story. Well, it appears there's no definitely Green Goliath in Guardians 2, with writer/director revealing to a fan on Facebook that Star-Lord, Gamora, Drax, Groot and Rocket "will not team up with Hulk."
Considering this idea was generated by fans, and never suggested by anybody at Marvel, this is hardly a suprise, though I'm sure there will be people out there disappointed by Gunn's comment. Would you like to have seen Bruce Banner side with the Guardians in the sequel?