Board Thread:Spoilers!/@comment-4453062-20160217065238/@comment-3010035-20160430144012

http://tvline.com/gallery/may-sweeps-spoilers-2016-finale-episodes-photos/#!21/undefined/

Seeing as here it states Regina and Robin team up to take someone down, and in the press release it says Cruella is out for revenge, I think it's safe to say that it's Regina + Robin vs Cruella