More than two 4sure
I think there is another 2-3 years of growth left in this sector and no doubt some will come and some will go the likes of Mytravellite &TUI at Coventry aren't really loco's but more of an hybrid.
Off the rest for sure Easy & Ryan will be around in 5 years time and baby have a good chance to really grow if they can get a foot in the South East market with Gatwick but any time soon they are going to have to order some more aircraft if they want get through the 5 million pax market. as for the rest of the loco's alot will depend on what Ryan & Easy do all the more so with Donny soon to open and this could have a big impact on both baby at Teeside & EMA & JET2 at LBA.
I think the next 5 years will see launch of locost to the USA out of either Donny or Stanstead