EDI has all the markets covered that longhaul TOM might offer (outwith package tours), with their extensive connecting US routes through NYC etc to cover Florida, Caribbean and Mexico if needed. The TOM 757 routes are on their way out and most can be covered by MAX. Routes to Egypt, Boa Vista etc that may have needed 757 dont justify 767/787s.
The current few week high summer peak TOM Florida/Cancun have stagnated for 8 years now, so think it unlikely that pattern will change. They carry good loads but are never 100% full hence why they presumably dont add more.
It will be the age old 'shifting deckchairs' we've heard before from TOM I would think rather than dramatic expansion at EDI where the low cost short haul leisure market is already squeezed by FR/EZY/J2 dominance.