Those are good questions. I emailed them about coat check yesterday and haven't received a response.
Based on my experience with other Cons, during registration, they will give you a brochure that shows the con layout & schedule. Vendors might advertise their events in that brochure. Otherwise, you learn about their promotions from their own advertising.
What day do you plan to arrive? If Friday, it is 3 hours between registration opening and the first real panel. You have time to scout the rooms for their capacity. The MeetUps are going to be held in the rooms, so they should all be open. Maybe Hilton has posted a spec about their meeting rooms somewhere, but use this a general guideline because we won't know if the con's setup will decrease the number of chairs.
Some Cons empty the room at the end of each panel to prevent people from monopolizing a seat all day. We shall see if BroadwayCon does this.
Based on other Cons, Saturday will be the busiest, followed by Friday. Sunday will be the least busiest. If a vendor is selling a limited edition something, it is best to grab it on Friday because it will be out by Sunday.
Another unknown factor until we show-up is popularity. How many people are interested in that particular panel? My prediction is Main Stage events will be very popular (Hamilton, Rent, opening ceremonies). Any panel that has a favorite actor will probably be popular.
It is always beneficial to have a buddy - somebody willing to hold your spot while you go get in another line. If you are going solo, you will meet people in the initial lines or try to attend the meetup for solo attendees.
I hope that helps a little. I guess I'm saying some of it has to be played by ear because each Con and each day will be different.
Let us know if you hear from them before Friday.
Updated On: 1/20/16 at 01:34 PM