I was wondering what would happen to Giancarlo Esposito's character and I found this...
Giancarlo Esposito open to 'Once Upon a Time' return despite 'Revolution' pickup
The former Breaking Bad star tells TV Line that despite starring on Revolution, he still wants to return to Once Upon a Time, where he plays the recurring character(s) of Sydney Glass/the Enchanted Mirror/the Genie. He says:
I think I can [pop up on Once]. And I would love to be able to do that. Iím going to be trying to go back and forth.