Perhaps my post seems overly cautious; of course, Oxymoron666 is quite right that there is still much to be said for the Virgin lifestyle, but it does require that you are free and willing to put the effort in to achieve it. However, many people I've met and discussed longhaul with have a very rose-tinted view of what it's all about, and the Virgin lifestyle in particular. It's important that a bit of realism is injected before you commit to something that isn't what you expected it to be!
I didn't cover command or other opportunities in your Virgin career, or the future for the airline, but - for what it's worth - here's my two-pennorth.
Command will, as the boys have said, be in the region of 12-15 years for a new-joiner now. It's quite possible that the time to command could reduce for those currently waiting if capital is found to fund an expansion at Virgin, but it would have to be a very significant expansion to reduce command times for those joining now. I don't anticipate that there will be expansion to that extent in the next few years, though there are still opportunities for the airline to develop new markets from UK major airports other than LHR. Even at Heathrow, slots do become available (ask the US airlines!) and I believe that Virgin has a small number currently unused. The wider future for the airline is still very much in the melting pot, but I am quite sure that everything from a partial IPO to multiway deals are being considered. However, I don't believe that Virgin Group will dilute its own stake below 25% of the company, and will probably wish to remain the largest single shareholder. We'll see. However, I doubt that there will be significant changes to the operation from a pilot's point of view in the short to medium term.
Future aircraft is an interesting (though largely irrelevant!) discussion. The B787 and A380 both remain firm orders, and the first A330 is about to arrive. There may be much to be said for the A350, but I seriously doubt that the airline will give up relatively firm B787 delivery slots for uncertain A350 slots at this stage. Any further hiccups in the B787 programme could change that, of course. The A380 remains slated for 2015 delivery, and the logic of its inclusion in Virgin's fleet plans remains strong. However, a fleet of 6 is probably too small for the use the airline would like from it. I would expect the 6 options to be taken up, possibly for the -900 if it gets launched in time. In the further future, I would expect the A350-1000 to be the prime candidate for replacing the B747 and A346. It is entirely possible that versions of the A350 could eventually replace all our types (A333/A343/A346/B788/B744), but that's real crystal-ball stuff!