Don't forget - the number of aircraft planned for 2012 (and therefore crews) and what actually happens may be two different things.
A big threat is starting to get under way just down the road in Abu Dhabi. Etihad are planning a large expansion and may severely curtail Emirates plans.
I believe the time for joining and getting a command in under 4 years passed about 12 months ago.
Maybe that A310 command isn't so unattractive after all!