Long haul continues to operate from London Gatwick. About 8 777s being required for the Winter 20212/2022 season and increasing to 11 or 12 for Summer 2022. The difference being that long haul remains with
Mainline operation. I suspect the cabin crew for these Gatwick long haul flights are the remaining 300 or so Gatwick crew who were not made redundant in 2020. Flight crew for the 777s are Heathrow based.
I know that BA are in contact with the former Gatwick Cabin Crew talent pool and asking them them to let them know if they wish to be considered for the new subsidiary before the end of November.
I believe the plan is currently for an initial 17 SH aircraft for Summer 2022 to increase by several units per year for several years. If demand warrants the number of units will be increased sooner.