A Battle Across Dimensions

That year, Tony walked out of a cave wearing the Mark I armor;

That year, Steve opened his eyes again after half a century;

That year, the reckless Thor was thrown onto Earth;

And then

That year, the caped crusader protected his city;

That year, the reporter took off his glasses and flew through the air;

And then

A veteran who returned from battle only to be struck from the rolls, a captain who yearned for the open sea, a handsome elf prince, a well-mannered cannibal...

When all these people appear on the same battlefield, who will survive to the end?