Originally Posted by
UA-NYC
Unless upgrade seats are held until the gate, in which case any pending upgrades go unfulfilled
The wording doesn't seem to indicate if you would be able to waitlist GPUs or if they will still work the same as always (either confirm or re-request at a later date). If waitlist is possible, you won't have to wait until the gate.
I'm going to assume that this will work the same way - with no waitlist.