I'm not sure if CVT still has it's temporary terminal but if it does I assume that could be used? I'm sure permission was granted to build a permanent one but I don't know if Jet2 would be willing to take on another Blackpool-esque job. Same with MME, I agree a base would be necessary and even then they would probably turn down a one aircraft base. What were Bmibaby and Flyglobespan's routes and how did they do? Not that I can see it though unfortunately, unless they could ensure NCL and LBA wouldn't lose out.
Anyway Coventry is way way way too far south for Jet2 to serve!!!