Further update: literally just about 10 minutes ago, I finally got this email from Universal:
Please choose one of the following dates* by October 29, 2018, for up to the total number of tickets purchased for your original visit.
Wednesday, October 31, 2018
Thursday, November 1, 2018
Friday, November 2, 2018
Saturday, November 3, 2018
Sunday, November 4, 2018
I guess I'm glad I called ahead and got my tickets for this upcoming weekend, because I can't make any of those dates (except Nov 1, which is already on my FFP anyway). I don't know if it was intentional or not, but it's kinda low they timed it so that this upcoming weekend was not an option. Though I can also imagine this upcoming weekend is probably going to be likely to sell out... but still, they could've even offered Thurs Oct 25 to spread out the crowds a little more (not that that would've made a difference to me either, as that's also on my FFP).
On another side note, anyone know more about my post above situation to get to Scaremony/Halloween maze from metro lot early entry? I did hear that other people got through as late as 6:40, but it's never happened that way for me. :/