I feel like the 2013's will be ON THE LOT by the time my ordered 2012 finally comes in. The is the longest wait ever.
OP, have you read about what the plans are for the WRX? Apparently they are going to separate it from the impreza line completely. I know the next gen WRX will have the FA20 but it seems no one is sure if that is going to be the 2013's of 2014's. I see you are looking for a carryover from '12 for '13 and I'd hope for the same in your boat. If the 2013 is a next gen, though, I would probably wait for the 2014.