"No one stays dead except Bucky, Jason Todd and Uncle Ben."
—An old comic book mantra. Not long after it came into existence, they resurrected Bucky and Jason Todd anyway. Uncle Ben is still dead. Until they brought him back in the Ultimate Universe. Then they killed him again, so no biggie.
Thunderbolt: So, how do I make my shockingly unexpected and triumphant return?
Lightning: You don't.
Thunderbolt: What do you mean, I don't?
Lightning: You don't make a shockingly unexpected and triumphant return. You die. You're dead. You never come back.
Thunderbolt: N-not even for a Reunion Show?
Lightning: Not even for a cameo in the remake.