Flying Tom, BA have formerly announced (read the quarterly results pdf on BAShares.com) that the new 777's are for replacement, not expansion, significant route cuts and that all recruitment will be catered for by the 'spare' crews created by the cutbacks.
Of course in todays volatile environment that plan could be in the bin by next week, so I wouldn't get too concerned!
I have been assured that 'at the moment' current sim checks, interviews etc that are planned are going ahead. hopefully I will pass my sim and get into the hold pool, and I'm quite prepared to wait around swimming for a while. I've got a secure, good job, that I enjoy at the moment, and am happy to wait a few more months / years for an opportunity like BA.