Don't just wonder what will happen. Figure out your preference options and get on the phone to BA so you have a better chance of getting what you want rather than getting what's left after everyone else does the same thing.
Thanks, og. I left that comment "open-ended" over a direct question mostly because I didn't expect people on the QF board to answer questions related to a BA issue. They placed us on the flight the day after, which is slightly less preferable than the day before but still an ok option.
The day before is still showing award availability. I'm curious if award availability is necessary to switch or they would put me on any routing I could dream up. (The only same-day Oneworld routing seems to be CX through HK).
Interesting that they are putting this plane on NA routes; I believe it had a no F configuration. Some people aren't going to be happy about losing their F seats!