Wow, this is intense. But I think you made the right call. You are taking your power back.
I think for a WAW to come back, she must respect her husband. As long as you are remaining calm and standing strong, she is certainly going to start reeling.
This isn't the end, I think she will start to experience some real anger. I'm not sure how that will unfold but be prepared for it.
Staying calm and confident is going to be key here IMO. Don't let her bait you into a fight. Detach as best you can, I'm sure the stress level in the house is off the charts.