Of course we missed the cutoff. I actually made our DVC reservation YESTERDAY (well I booked it for November initially, then moved it to June 18th yesterday when I realized we could do a quick escape). So I missed the 5/12 deadline for a reservation. We missed out on the Annual Passholder drop. Our flight is actually 5/18 in the afternoon, so we likely can't do the 1pm virtual queue for that day for APs. Sadly we are leaving late afternoon on 5/19 to fly home, so we can't even hope that there would be a late chance at riding that day.
So the stars just are not going to align with us for this trip for the preview, which is probably for the best. Of course the crowds those days at MK will be insane, so we will probably need to focus on visiting other parks during our trip...and just riding Guardians instead which is our favorite.
We will be back in October and will just have to try to ride it then!