I've never been rejected from waitlisting a PEY->J upgrade (R->U) as a CX GO. But I've never had success clearing the waitlist although was able to do instant upgrade. Just this week, on 1/8, I booked R class ticket on CX841 for 1/11. They wouldn't confirm the upgrade and waitlist was just expiring as T-4. EF showed J9 C9 D9 I0. Next day, I checked EF and it was showing I9, so they must've just opened up the discount tickets as J class was less than half full. I called up MPC and they were able to confirm my upgrade.

My return flight is on 2/1, close to the Chinese New Year. I'm holding an R class ticket and waitlisted for upgrade. Even though EF is showing I9, I'm pretty sure they are holding out for revenue tickets so not too confident on clearing. I may rearrange my return flight to a different day thats a little more open. I'm worried that Friday before New Year will fill up fast.

I'm hoping that I get an upgrade to DM after my departure. Back in November I had asked for an extension as I was sitting at 985CP and my year was ending that month. I knew I'd have some travel in December and January. They kindly gave me 3 month extension and said I would zero out at the end of the month and call them when I get 215CP before 2/29.. My arriving flight will put me over, so there's a chance I could get upgraded to DM while on the waitlist when they possibly open up availability closer to the flight (fingers crossed).