I can't see Jet2 moving into Liverpool at all..I may be wrong, but it will not be Liverpool nor the niche market Blackpool that will suffer.
I know quite a few passengers from Liverpool use MAN (No idea why)..If jet2 move into Liverpool, then JET2 at MAN could suffer.
There is a big gap called the Mersey between Liverpool and Blackpool.
Liverpool although a great airport have seen losses in frequency of late et al..Why would Jet2 go there, at the moment?. Makes no sense.
if Jet2 muscle in on routes like they did with Monarch (AGP} at BLK, Liverpool may find trouble with EZY and maybe FR gone.