Board Thread:Character Discussion/@comment-25375217-20160623104833/@comment-25926288-20160623111954

None. Just as you said, they will likely not add new series regulars (but I'm pretty sure they have money and viability to get more).

If there would be any, we'd get some news or some acknowledgement of something. Hyde's villainy isn't confirmed to be all season, just not 10 episodes. That means it can be 3, 5, 7, or 16 episodes and none of that changes anything. Any person to show up will be a guest star and likely recurring. Barbara Hershey was present for about 14-ish episodes of season 2 and wasn't a series regular. It'll likely stay that way for anyone else who will definitely not be as present as Cora (mostly due to the fact that we have even more series regulars now and even more stories to tell)..