Is rank 20 back to requiring 5 additional battles?

With people coming up on rank 20 soon*, do we know if rank 20 is back to normal and only requires 5 battles, or is it still 20 more wins like the interlude season?

*Saturday because:

carry in from previous season: 1 set

tue, wed, fri: 5 sets each = 15 sets

thurs: 10 sets

before sat total: 26 sets

rank 19 requires: 27 sets

saturday adds 5 sets so even if you flubbed a set 4 times you can hit rank 19 on sat, and if you flubbed fewer than 4 sets you can progress toward 20 on saturday