The PbP features are very compelling, but I don't think we're going to see those on a Gsync monitor (the modules just don't seem to allow it) and personally, I prioritize Gsync over these "nice to have" features.Acer X38 is basically their take on this. Same panel and all. We might see more contenders at CES 2020 in January. Hopefully to market faster than this one.
The things I would like to see is a decent HDR version of this and a model that offers PbP. I would not mind if Samsung jumped in the fray as well and made a VA model with this size/res. I'm happy with the display performance on my CRG9 so if they could get something similar to that it would be a pretty strong option.
It wouldn't surprise me if we see a Freesync2 version, potentially with more input flexibility - again, that would be nice but I can live with 1 DP and 1 HDMI, I have a strong bias for the trouble free "just works, all the time" experience you get with Gsync.