I wouldnt be surprised if Delta buys in. Especially as they bought the SQ stake of Virgin Atlantic.Virgin won't be going away - there owners have changed a few times in the past.....I would keep an eye on Singappore or, more likelyy, Etihad, having a tilt at a takeover...
Though I'm a bit concerned about the amount of $$$ VA seems to be burning through. You would have thought a lot of expense has been done by now with rebranding etc.