Board Thread:Spoilers!/@comment-26385535-20160907041710/@comment-24674051-20160914164154

Ok, Random thought based on the Snowing flashback possibility.

There has always been the question of if there might be some issues with David being heartless and having to share Snow's heart. Maybe some of this might be addressed? Not in flashback, obviously, but present day. And this could still tie into the EQ being hearless, thanks to Regina.

As for present day, Regina and the EQ are both suffering some ill effects of what Regina did, and Regina realizes that what she did in crushing the EQ heart was probably not one of her better moves, no matter how well intentioned it was. Anyway, the only way to totally fix the problem is to reintegrate the EQ with Regina, but that is not going to be easy. (but both parties are in agreement that this is the best course of action, giving credit that the EQ may be brutal, but she's still smart). So, as a short term solution, Regina has to split HER heart to fix the EQ's heartless problem. Otherwise, they both die.

Total speculation, by the way.