Ovr is completely right about no stress about moving out. If you decide to stand the timeline is years. 14 months from BD to XW moving out in my sitch. You mentioned you co-own the house, as did I with my XW. So what you need to consider long term, as part of a divorce, are you financially capable of buying her share? If so do you WANT to? In the short term don’t make any moves befor consulting a lawyer and always from a position of strength.
If I were to extrapolate your timeline to my own situation, it would put my W moving out roughly next summer, which I think could be plausible. I would be shocked if she tried to put something together before then, especially if I shoot down a nesting type setup.
She would not have the financial means to buy out my share of the equity in the home. Would I be able to do the same with her equity? Possibly, but I'd be losing a very favorable rate when I'd refinance. I don't know if either of us wants to boot the kids from their home by forcing a sale, so that could get interesting. This would be down the road, though.
Thanks for posting, Mumin. I've read some of your thread and I'm sorry for what you dealt with.