They sent their last R after their last interview date last year, which was the 22nd of January, so I am guessing those who havent gotten pre-II rejected will get the R then. This is assuming their interview season ends in Jan this yeat like it normally does. Unfortunately, that seems to be the case. But you'll never know. Someone might drop their II and they might extend it to you. I think they haven't rejected everyone because they want to have backups in case someone declines an II last minute. However. Iowa is such an amazing school that it's hard for anyone to do that given that there's no cost to attending interviews this year, besides time.