She probably wins sole custody and then all is well for a short period. Then, all that Drew has done comes to light and when she tries to leave--he's not having it and Michael or Super Jase swoops in to the rescue.
I would love a twist of:
A. Willow saves herself. Maybe she bops Drew on the head and bolts with the kids.
B. Nina saves her daughter and they all bolt.
I'd love to see A or B because I'm sick of serial killer Jason straddling the fence. Michael saving his family would also be fine.
One thing for certain is Drew's behavior is going to escalate when he doesn't get his way. His love for Willow will turn to obsession, faster than you can say Here's Drewfus!!!