After reading an article that Heimdall might possess the soul gem, and, with the bugging idea floating around for my head for a week. I thought through possibilities and ideas that might go with it.
Heimdall is the Bifrost keeper, for he can transport beings to and from any place in the universe, well in the said tree of life. But, what about the things he can't see, like the dark world?
The dark elves about to attack?
Loki floating away from Asgard into the realm of Midgard?
Is that because those beings don't have souls?
But what has happened in the latest Avengers movie?
Heimdall has lost the soul gem, given the fact his eyes....Looked like this before^
Did Thanos or Loki take it?
But we have to wait for Thor 3 to come to thearters.
Don't worry though, Civil war will hold us.