My SO and I currently have GPUs waitlisted on a flight SFO-CDG (UA990 22 Nov) in less than 2 weeks. W-fare tickets were purchased in February when there was only 1 blocked seat on seatmap. Currently, available fare classes are J4, JN4, C0, D0, Z0, ZN0, P0, PN0, R0, RN0, IN0, I0, Y9, YN9, B9, M9, E9, U0, H0, HN0, Q0, V0, W0, S0, T0, L0, K0, G0, N0, XN0, X0, with 3 open BF seats shown on seatmap.
Doesn’t look good.

I have tried to monitor the R buckets, but have never seen anything but 0s. (I’m not aware of any automated ways to do this anymore.)