It could just be today, but all guests (including regular admission, not just hotel guests) were able to queue up for MoM prior to 8:30am (which is around when I entered). Just an FYI in case anyone is thinking about rope dropping. Now I'm wishing I would have gotten here even earlier.
The first posted wait time today was 300 minutes. Went down to 200 pretty quickly (less than an hour). I'll update this post when I've exited the ride to give my wait time. Edit: down to 120 posted at 10:30ish. Edit: Ride is having technical issues at around 11am, no one has ridden for about 30 minutes now. Edit: Finally back up at 12, one hour delay.
Edit entered at 830, exited at 1210