Difficult to extrapolate at this point. The setting does look grimer, but we have zero indication as to the actual contents.
Hoping for more complexity, yup ; not sure if that's what you mean by "gore and six, hahaha".
I certainly don't want them to go out of their way to place mature content as a goal (don't think that'll happen, though); merely as a mean to devise a realistic world.
Heads
should roll. Fights aren't pretty.