Comms from TUI management point to some significant upheaval for the winter 23/24 season. The Sunwing arrangement ends summer 2023 and they then have a fleet which is too big for the low season.
There are better gigs out there than poorly paid summer contracts where the pilot pays the training costs. My own outfit still pays for the heavy jet type rating with the traditional bond arrangement that used to exist years ago. Full time employment as well.