STN is an existing base - a carry over from the Channel Express days where G-CELP is based to operate various ad-hoc charter duties. Not sure whether there are any plans to expand this side of the business, but would be surprised if they rolled out a mainstream scheduled operation from there simply given the competition in that part of the world.
The South-Eastern part of the North of England catchment area is where they have arguably the least presence and if they are looking to expand, there is some logic to DSA and HUY being on the rumoured 'new base' list. One imagines if MAG have some medium term plan to dispose of HUY, then the investment in getting a low-cost operator established now will probably generate a disproportionate increase in the selling price a few years down the line. After all, an airport with .75m - 1m pax p/a and a based operator is going to be infinitely more attractive than 0.4m and a few summer charters.
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