I am working purely on assumptions and W's actions. I have asked her point blank what the plan is with no answer. Monday she packed up the kids things for the night and her things, told me a lie about what the plan was but kept the kids at her parents place with her. So my assumption is that the kids will be sleeping there with her. Without any response from her I think right now my best bet is to see what she does over the next couple of days. I suspect the kids will sleep with W at the in laws.