Following up on the "Upgrades rapidly falling" thread, I'm currently on US1790 LAS -> PHL. Booked this as me of the great MR deals that have been popping up from Philly to Vegas.
I am CP this year, and was cautiously optimistic when I saw most of the preferred seats in Y taken about 2 weeks out. I cleared with a non-preferred companion at T-7 for both legs (stayed 2 nights in Vegas), but both times all but one or two seats were gobbled up.
Just glancing at the passenger manifest the FA has, there are 5 CP and 1 SP in F on this return flight currently. That seems like alot to me, mainly because I've done this MR twice and have have been upgraded as a SP once with an open seat in F next to me!
I checked KVS just out of curiosity and it doesn't appear that even a PP would have been cleared at T-4 outbound.