If/ When A3Sync gets fully adapted, will PWS still be 'unofficially' supported or will the PWS repository no longer work then?
If I remember correctly, when UO switched from SU to PWS, SU still worked and updated the mods. Though, maybe since SU and PWS had the same roots it was a different situation back then.
Off topic: As stated above, although PWS is not as stable as one would wish, I personally witnessed only a few crashes on my system and only one while downloading mods (usually it crashes right when I launch it and I need to re-launch it 1-2 times). Since I start the game without PWS I only need it once in a while to update the mods and usually I can get that done within a few minutes. For me, personally, switching would be a little annoyance as I have to once again get another program and get accustomed with it. Of course, as I have read multiple times now, user experiences seem to differ.