Originally Posted by xeno000
Hopefully, Whedon will defy expectation by not killing anyone. At this point it's such an expected trope of his that he would shock the audience more by not resorting to it for the millionth time. Finding innovative ways to ratchet up the danger for the heroes short of offing one of them might take more creativity but I'm sure he's got it in him to do it.
I think the easiest way would to have Ultron start nuking cities. That'll be much more dangerous and threatening than "U KILD MUH FWEND!!"