Just looking for clarification on something. I waitlisted for a Platinum mileage upgrade on a EWR-SAN flight that's sold out in F-just to get the highest priority possible if a seat were to come open. Side note: having terrible luck on CO upgrading. Hopefully this isn't the future with the new UA transferring over to the system. At the 24 hour mark, Continental.com says waitlists will "expire." Does this mean that I "missed" the mileage upgrade or transfer to EUA system based on status and fare class and check-in time, or do I still get priority above EUAs in the upgrade standby list for requesting miles upgrade?