My interpretation of the likely future is that Episode 12 will wrap up some, but not all of the dangling plot threads, leaving a final cliffhanger into Season 4 (so that the Season 4 DLC, when it finally releases, isn't regarded as "optional"). My guess is that DPC's tentative plan is to wrap up the main plot in Episode 13, but currently he only has definite plans through the end of Episode 12, and an idea of what's supposed to happen to wrap things up in 13.
My prediction is that Episode 12 will have a NYE party, but will mostly focus on relationship plots - revealing what's in Bella's room (obviously); the throuple reaching a crisis point; exploring the Jill/Bella dynamic or following up on Bianca (though that might get pushed to 13); Sage finding a new family; Zoey having to deal with the MG squad; Riona returning; Jade's divorce; etc.
There will probably continue to be tension with the Alphas, but I'm expecting the rest of the frat stuff to get postponed until either the cliffhanger at the end of the episode, or even not get brought up again until Season 4. Instead, there'll be the fallout from Vinny/Buddy, and possibly conflict with/over Stephen (though that could also be simmering with the resolution waiting for after Mona's cliffhanger return - if that's the route the divorce ends up taking).
I'm guessing Episode 13 will have the denoument of the Frat Wars, and possibly Stephen's come-uppance since he's probably the person who supplied Magnar with the answers to the mid-terms.
Then, squinting more deeply into my crystal ball, there'll be a timeskip to Spring Break with a combined DIK/Alpha party for the first epilogue, and another timeskip to Finals Week for the second epilogue, and a final epilogue establishing the new status quo for the following academic year and beyond, being Episodes 14 and 15 (and possibly 16).
Nope, he didn't really give anything in the latest Q&A just saying
"For that reason, I can't say a final count of episodes, like 13, 14, 15."
This followed a statement declaring he has ambitious plans for endings and doesn't know how many episodes it will take.
I believe what he actually said was "For that reason, I can't say a final count of episodes, like 13, 14, 15..." - the ellipsis changes the meaning somewhat, from 14 +/- 1 to 13+
To me Felicia looks like someone who is starting to get one too many facelifts done
Her face is definitely firmly in the uncanny valley for me...