AA's "web specials" are available now on many dates (although sometimes they price out at higher than "standard saver" raters). And you CAN get seat assignments. You can not make changes to the ticket, but you can cancel and pay a redeposit fee of $150 ($25 for a 2nd ticket booked in same itin/account). This likely is a sign of things to come - - "dynamic" pricing on all award seats.