My thoughts? Unless you push the issue (and you can if you really want to) she will be living with you well past the holidays. Every deadline this woman has ever set has come and gone without any hoopla or fanfare, and without her following through on any of her "pronouncements". At this point when she mentions mediator and moving out, etc, it sounds like sounding brass and tinkling cymbals to me. As it should to you.
DO you believe she will follow through on any of this?
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018