I see that most fans are happy with Hulk being in the next Thor film except the die hard Thor fans. I can understand why they feel this way for many reasons, but there are many reason why Hulk is in this film.
1- JLA will be released the 11-23-17 and just a regular Thor movie is just not gonna cut if the studio wants to make money.
2- They can't make a Hulk film without Universal taking some money, so what better way to show Hulk in the MCU by having a guest appearance with Thor . This way they keep all Hulk profits.
3- Where has Hulk been during Civil War? Now the answer is clear. Not to mention that Ironman will be in a Cap film so why not Hulk in a Thor film.
4- 2 is better than 1 and will draw more profits for the film, especially since both Thor films are regarded as good but not great films.
5- More Hulk is a GOOD thing considering that Hulk only had 1 appearance in phase 2 (Ironman3 had no Hulk). Folks just want more and rightly so Thor, Cap and Ironman had there own films and were still in Avengers 2 with there supporting cast members were see or mention, but nothing from the Hulk.
Now the following is the stuff I want to see Hulk do in Thor Ragnarok.
1- NO Thor vs Hulk, because if Thor wins in makes Hulk look bad already in the light of Ironman sucker punching Hulk out and if Hulk wins it makes Thor look bad in his own film.
2- Hulk should TALK already and in conversations like in the animated Avengers earth's mightiest heroes. enough of the mute gorilla in action already.
3- Showcase Hulk strength more but Hulk should NOT steal the spot light from Thor, it is his film.
4- Thor and Hulk should be a true team-up film.
5- Show Valkyrie, Enchantress, Surtur, Executioner and Ulik and his army trolls
There are many stories where Hulk was in Asgard, tales to astonish 101 and inc Hulk102 come to mind that could be rich in comic book history and add flavor to the film. What are yours?