Will it be crowded?
It's gonna be jam packed, no doubt about it.
You need to get there 2 hours before they open and stand at the gate. If you don't have your tickets, then have another person stand in that line while you hold your place. When the gate opens, RUN to Hypersonic.
One train? Each ride is about 45 seconds. Then we'll estimate 2 minutes to unload/load and launch. We're talking 20 rides each hour, times 8 people, gives us a whopping 160 ppl per hour.
I would hate to stand in that line, one that doesn't move. Glad I'm coming in a couple months when they have 4 trains running. Good luck tomorrow.