Queenvic,
I very much doubt that BA will make any distinction between bmi 330 and non 330 crew, especially as they don't have 330's in their fleet and I doubt they plan to keep them long term, even less likely as both birds are due heavy maintenance soon and will require a leased aircraft to allow each of them downtime in turn. The BA intranet mentions several times a "combined BA/bmi short and midhaul network" so suppose we'll just have to play the waiting game and firstly hope that we all have jobs to start with