So *if* we get two aircraft from them, we may only see the equivalent of one aircraft's worth of flights.
I think most people think FR have over-ordered planes in respect of winter demand and it's been their strategy recently to lay them over in winter at places like Leeds and lay staff off.
They have expanded in to Eastern Europe, notably Hungary recently, and gone into major airports like BCN which was not in their initial philosophy.
So if they have some spare aircraft, they would have to think they could make more profit from them in summer by basing them at MME than either leaving them idle or putting them on routes elsewhere. I don't think they do have spare aircraft, as on the Ryanair thread in PPrune, it's been suggested they've had to cut out a plane (and routes) from places like Faro to serve their suddenly-found market in Budapest; that would suggest, if they were to base at MME, they would consider the routes there to be more profitable than those they'd cut from elsewhere.