Board Thread:Spoilers!/@comment-6175354-20140722174741/@comment-6175354-20140725225426

YayMona wrote: Hans being cast wouldn't necessarily stop him from being a disguise used by one of the villains. That is still a possibility.... however, it was reported that Hans will be a recurring character. It is unlikely that one of the villains, would disguise themselves for several episodes.

Eddy and Adam already said, they have no plans on changing anything from Frozen.... and Hans is Anna's ex-fiance. The Frozen arc will take place, after the events of the film. Most probable scenario, is that Hans will just be an ambitious, yet vindictive prince.