Things may become potentially more difficult for VS with the BA/AA tie up. Some corners say they need to consolidate in order to prosper. I'm not sure what their current scenario/future predicaments will spell out for remaining flight crew and future recruitment, however I believe there are a number of guys who have an open invitation to return after the redundancies and layoffs within the last year or so.
Will VS grow any further? I'm not in a position to answer however many think they are now quite restricted. The A330 is a replacement for older A340s and 744s and I believe the A380 is now pie in the sky. News on the 787 has also been quiet.
It always appeared as one of the pinnacles, however a few posters here who have had first hand experience will offer an alternative opinion. Working within a potentially more difficult market may put the business under strain; which is never good for those employed.