One major benefit is that Lossie will in the future be able to take Voyager - something that currently means every large Lossie Sqn move has to be done through Brize or occasionally Prestwick. This inevitably means a very long journey for the guys and gals after long flights when landing in the U.K. For those that are already far from home, every little bit of morale helps, and this has been an issue for some time.
Yes, Voyager has been in a few times before, but it either has to be towed at walking pace around the airfield (blacking the Q runway in the meantime) and pushed back onto the threshold to start, or has to be flown by an instructor because there is no suitable turnpad and anyway, the regs changed so the runway’s now too narrow for a 180 turn.