Filming for the Once Upon a Time spin-off — currently titled Once Upon a Time in Wonderland is beginning soon, so it's no surprise that new information is rolling in all of the time. We've decided to step back and take stock of what we already know. Plus, there's some exciting news regarding a certain fan favorite villain Cora (Barbara Hershey)!

Okay, let's go over what we know about the spin-off as of today, April 4, 2013.

It's anthology style. The series, if it gets picked up, will run for 13 episodes. Right now, reports suggest that it would run this winter, during Once Upon a Time's winter hiatus. Rumors have it that the idea is for the show to be anthology style, with each season having a solid beginning, middle, and end (think American Horror Story.)

It's not a done deal. Some key players from the OUAT team are currently working on a teaser presentation for the ABC execs, who will then decide if they want to see a full pilot. So this show is far from a done deal.

It's about Alice in Wonderland. The spin-off teaser pilot that's being filmed is set in Wonderland. The show will apparently involve seeing Wonderland both pre- and post-curse, using a flashback structure similar to OUAT.

Meet the cast. Many of the key characters have been cast, including Alice herself. Check them out.

So, is Cora involved? While Barbara Hershey is not part of the mini-presentation, OUAT co-creator Eddy Kitsis told TVLine that "we can’t imagine visiting that time in Wonderland and not seeing Cora as the Queen of Hearts." It sounds like they hope to get Barbara Hershey on board if the show gets picked up.

Read more OUAT spoilers here.

Catch the next episode of Once Upon a Time on Sunday, April 21 at 8 p.m. ET/PT on ABC.

Source: TVLine

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.