Without getting "political" about it, quarters are just constantly in demand, so the mint will quickly distribute whatever the current quarter is supposed to be. Where I work (a retailer within about 10 miles from the Denver Mint) both Pauli Murray and Patsy Mink showed up very quickly after they came out. Things might be slowing down a little though because I haven't seen any Mary Walker quarters out yet, despite them being officially released over a month ago.
I have all of the Washington, State and America the Beautiful Quarters but not the women's. I don’t collect varieties as that would drive me nuts. Not that I’m not there already but it would definitely make me worse. Lol