FlyerTalk Evangelist
Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: BA Silver, TK E+, AA PP, Hyatt Globalist, Marriott LT Plat, Hilton Diamond
Posts: 13,041
AA is notorious for not releasing premium cabin award seats.
But, yes, if they release some Business Class award seats closer to departure, you can call BA and pay the extra Avios to upgrade cabin.