AMD has launched new chipsets with each Ryzen series.
Ryzen 1000 had the A320, B350 and X370.
Ryzen 2000 has the B450 and X470.
Ryzen 3000 has the B550 and X570.
So the upcoming Ryzen 4000 are likely to introduce new crop of motherboards to consider along with a CPU
I have lots of video cards so I was thinking of a higher end board to run dual cards. Many games still scale with dual cards nicely. I tested a lot of games with my GTX 690 recently.