The Boeing 787 fleet has no command upgrades for 2 years minimum, management are trying to convince crew to move to the Airbus as they are over crewed with 3 x 787 airframes going back to the leasing company. VS is the only company sending 787's airframes back..
Rumors going around that Virgin are looking to stop / pause recruitment with the oil going up and Middle East conflict.
Still many Airbus and Boeing flight deck leaving the company every month for other opportunities like BA etc.