Spoiler Thread: Avengers Infinity War

Ok, still thinking about Hulk:

Hulk was taken by surprise by Thanos. He did not have a protracted battle to get angrier and angrier. He is processing that.

Next movie:

Imagine Thanos inflicting a mortal wound to Black Widow.
Imagine the death scene. "Bruce, The sun is getting real low. I ...." ... She dies.
Banner mourns briefly before rage. Worldbreaker Hulk rage.
He and the other Avengers take care of Thanos. Save the universe...
Hulk doesn't fully shift back to Banner. . .
It is Sunset.... sun is getting real low.... there is emotional trauma there.
Gray Hulk Aka Mr Fixit becomes an MCU thing in the next set of movies.
Hulk at night, when the sun gets real low. Banner during the day.

Just a comic nerd thought.