Fans of MCU have been wondering why Hulk was a no show in ‘Avengers: Infinity War. Actor Mark Ruffalo has spoken about the internal conflict going on between the Hulk and Bruce Banner as the reason behind the Hulk’s no-show in the film. A new theory suggests that not only will the character make an appearance once and for all in ‘Avengers: Endgame’, but he will be seen in a couple of different avatars. On Reddit, one fan wrote that they’d been ‘mulling over the whole Hulk situation’ and had come to the conclusion that Hulk will return, but it will take significant effort to bring him out.The theorist points to the Extremis story arc from Iron Man 3 as a possible clue. Bruce Banner could be injected with the super soldier serum, which could possibly result in the Marvel Cinematic Universe debuting Red Hulk. “Using Extremis would make him pretty unstable, and pretty angry and… very Red!” the theorist writes.In a separate scenario, the Hulk could reappear as Professor Hulk, which is basically a version of the character in which both sides to his personality – the green rage monster and the brilliant scientist – coexist. Leaked concept art and images of toys suggest that Endgame’s Hulk could be slighter in build, perhaps because he is Professor Hulk. Based on these images, it is also hinted that Hulk might be sent into the Quantum Realm, along with Thor and Rocket. Published in Daily Times, January 26th 2019.