I left about a year ago, close to the bottom of the seniority list. Assuming 8 crews an aircraft, the company would have had to aquire another 32 aircraft for me to get a command assuming no captains left before their normal retirement age - which they don't tend to. As Virgin have approx twice the number of FOs than Captains - and also a lot of the Captains hired in the last boom were about my age, I couldn,t see a command coming my way for a very long time.
No one can say how long it will take to be considered for a command in Virgin, but it won't be a short time. Ten years or more is a fair guess.