Board Thread:Character Discussion/@comment-26235531-20150327013221/@comment-1894786-20150513003058

They signed Michael so he wouldn't be busy when they decided to do Will's story and didn't think to do the same with Emma. Let's be real, the real reason they couldn't do Will is because they didn't have Ana.

But I don't think Hook and Will have any history together aside from what we saw in 4A. Yeah, Hook randomly knew Will had been in Wonderland during Ursula's episode, but it was never actually stated that it was because he knew Will before. Remember, he was dating Belle and Hook and Belle became close during the six week jump. She probably passed it on that Will was in Wonderland.