This is a big shocker! I've been a winamp/wacup user now for 20 years, and like many very disappointed about how they left us all in the lurch.
WACUP - lots of respect, and the job you've done I can't speak highly enough of. I admit there are some areas that I hope can be fixed up and improved, but at least yo all put the time in and we respect it. I don't want to be stuck on streamers like Spotify etc.
Will I got back to Winamp? I don't know!
Splitting up the resources on maintaining the setup could be a problem. We'll all lose out.
If being honest after the last [lost count] years, i've little confidence in Winamp, i'm sorry to say.
Okay, on that basis I'll def stick with WACUP, wish I could help you lot with updating. I'm not a mega programmer (python, SQL, VBA are my specialities).