I can tell now, win17 and Win18 are not going to be ready to move in time the move of the live data is going too slow to go live by 2AM. Win23 is close, it was started later, and expected to be the last one anyway, but may be the only one in the timeframe.
win17/18 will proceed when they are ready, but we are looking at a relatively minor outage of about 5-8 minutes for the switchover to take close, the settings and permissions will all remain intact, so it is not like a migrate process in the past.