Try not to get too built up on expections, though,'cause it will be brutal if they are not met.
Do you know WHY she decided to go house hunting?
ie: if it is potentially a "her, the children AND you" situation... why not move back in to where you were living together before? bigger/fancier place?
My current status: june 2006. Wife ran out and filed D. Finalized Jan 11, 2010, after 12.5 years M. 3 wonderful sons caught in the middle