777-200LR,
I would suggest about the same number as the CRJ/ERJ, 146, 737, DC9 etc etc drivers we have here at the moment. Do you really think these things are a stopper?
A new joiner now will get a command with aeroplane number 200ish, so I would think they will have a few years in which to work out how to avoid talking to Bombay on HF.
Don