Good news about Rekyjavik - clutching at straws, that could almost now be counted as a proper seasonal scheduled service. I would say there is demand for a year round link but Jet2 can clearly make more money on ski and summer Med routes to commit to going year round.
The 2019 figures, well all things considered good based on events. Potentially another tough year ahead given the Flybe situation. If the worst happens, one Hope's EZY can be persuaded to take up a few routes but with S20 schedules and aircraft allocations done, this IMO is unlikely.
I make 25 scheduled airlines and 105 scheduled destinations for summer 20 which is not too shabby, unless BE disappear of course. The airline mix at BHX certainly beats Luton and Bristol hands down, even if our pax growth is much weaker.