Word is that BA will not issue any tickets at the current (pre-increase) prices unless you are there to pick them up personally before the increase becomes official. However, it appears as though EMECO (AA GSA) will so you may want to try them to get in on the current low fares.

BTW, welcome to the world of RTW addicts. Rumor has it that there is a sub branch of Mileage Runners Anonymous that will be starting up to aid those of us addicted to RTW trips.