Flybe wouldn't necessarily need to operate any one-stop flights or any W-patterns to build a decent schedule at NQY.
There are aircraft/crew bases at lots of airports (INV, ABZ, EDI, GLA, NCL, BHD, MAN, IOM, BHX, LGW, JER, GCI, SOU & EXT) which may have enough slack in the schedule to allow a NQY flight to be fitted in. Obviously, not all of those bases could support a NQY flight, but some might.
It may be possible to have flights from EDI, GLA, MAN, BHD and NCL.
Given that MAN-FRA and BHX-FRA are being suspended this month there is obviously some slack in the system.