I changed computers a few weeks ago, and have been having trouble connecting to the National Bank of Ukraine website, so imagine my surprise when I saw these two notes popup on ebay. Freshly printed notes with new signatures!  New runs of the 200 and 20 hryven denominations were issued and I have to believe that the commemorative versions of these notes are not far behind. This is the second signature variety for each note of the current design.

20 Hryven 

 2019, PICK # A 126, Smoliy signature.

 2021, PICK # UNL, Shevchenko signature.

200 Hryven

 2019, PICK # A 127, Smoliy signature.

 2021, PICK # UNL, Shevchenko signature.

The NBU Banknote Printing and Minting Works is in overdrive this year, with printing 30k runs of six different commemoratives and runs of 500, 200 & 20 hryven circulation notes to date. There probably won't be any additional print runs for circulating notes this year but in 2022 look for the 1,000, 100 & 50 to have new printings.  As far as new Pick #'s for these new notes,  your guess is as good as mine, I'm going to go with A 126b and A 127b.