I should imagine in sheer desperation TUI are trying to reactivate the 3 757's that just last month were retired
if at all possible - I'm not sure of their fates though - scrap/freighter or costly C checks due?
plus get back the Sunwing 738 leases if poss too?....but that would be breaking their contract with Sunwing, who have their own MAX's grounded 
What a summer this will be...I wonder if reservations are canning pax numbers to enable combining more flights onto one 787?
and back to SOU - any news on the LOLO airline of choice? that's gonna be rather interesting at this late stage