Virign land where they have done for at leats the past 8 years and that is gates 82 - 85, the only difference is where you go when you get to the main terminal and that has switched to Terminal A for checkin and also collecting of luggage of you do the bag drop or if getting theire pre-arranged transport be it car hire or transfers. If you do not get any Virign assistance once at the airport and don't do bag drop it doesn't matter if you request A or B.