Maybe but someones gonna bite it. And given his character im guessint Cap. Theres no happily ever after for him. Just the next mission. Tony can become a mentor and marry pepper. Thor has an enitre ppl to rule and protect. Hulk i just dont like the idea of it being possible to even Kill him for good. Like Maestro said the Hulk DNA always finds a way. But hes possible aswell. But cap is of the main heroes is the one who makes the most sense and would hit the hardest. Hawkeye has a family so his death could hit hard aswell but they havent done much with him outside that farm scene