Will the possible closure of fast jet training in the North of England and it's movement to Wales be a blessing in disguise? All air movements will still have to be over open unrestricted water or ranges in the North and MME is the ideal set down should things go wrong or the weather close in. It may be that MME is to be an auxillary reserve airport in the future with a small dedicated RAF repairs team.
There again the RAF may actually have thought things through and may have other plans in place.