is Prometey still joining the Czech league? If the Ukrainian league (or something) is still going on?
Yep, Prometey A team will play in the Czech League (and in the Champions League).
Ukrainian League is going on with 8 teams (Prometey B, Alanta, Volyn, Dobrodiy, Balta, Halychanka + Ukraine NT U17, Ukraine NT U15). They’re playing in one venue, Cernivci (western Ukraine, close to the border of Romania).