Yes, some wikis has both discussions and forums co-existing at the moment, which Fandyllic outlined. But once all is said and done, forum would eventually fold into discussions. That has been the goal before UCP.
Hi Shade! According to this post on the A Million Little Things wiki, ABC, the network where Once Upon a Time airs, is partnering with Fandom. Is it possible for us to be made an Official Wiki Community?