I was a bit surprised that they killed Volstagg and Fandril off in a blink and you'll miss it, Admiral Ackbar sort of way. Granted, the Warriors Three weren't essential, but if they had to go, they deserved a better death that that. Hogun, at least, went down fighting.
I wonder if Sif will ever be seen again.
And this is more of a IW question, but what happened to Valkyrie? I don't recall seeing her among the corpses on the ship.