5. More Heimdall
Idris Elba's Heimdall was a pretty awesome character in the first movie - coming across as both imposing and badass - but we simply didn't see enough of him. He's the all-seeing, all-hearing Asgardian sentry of the Bifröst bridge, based on the mythological deity of the same name and he proved his willingness to fight in the first movie - attacking Loki with his sword before the adopted son of Odin froze him mid-swing. We want to see him get some real action in
Thor: The Dark World, helping Thor and company to fight against the new threat of the Dark Elves and whatever else is thrown at them.