User blog comment:H. Mills/Is Patty leaving?/@comment-4588264-20160121225341

I really hope she hasn't left already, but the most logical answer is that Patty's probably preparing to leave and Barry is going to have to find a way to convince her to stay. My guess is Barry will tell her to make her stay but if not I'd be really mad at the writers if she's gone already.

As to who Zoom may be, you never know. One of my theories is that Jay from Earth One is Zoom, because isn't it strange that we haven't even seen him yet?

And Eobard Thawne is most likely Flash's enemy still, since I did hear he's appearing from a timeline that takes place before Barry's parents were murdered, though they'll probably work together to fight off Zoom or something like that.