So, not likely to reopen a station just for 9 aircraft? Well, wasn't Kinloss only to receive the same number of MRA.4s when the Nimrod programme shut? The full infrastructure for a flying station is still in situ only some 6 months after closure and I believe it is a 24/7 diversionary airfield anyway. The Army may be based there but, given the size of the units, probably only require a fraction of the infrastructure. To be sure, significant investment would be required but it is a reasonable location.
The caveat to any basing location is, of course, the direction of the political wind. Rosyth Dockyard, for example, had everything going for it - expertise, infrastructure, future investment - to continue its role in refitting RN submarines. Except...Devonport was a Conservative marginal seat and it, in the end, received the contract.
Returning MPA to Scotlandshire would be a welcome political development and hopefully leave nationalist grievance-based politicians lost for words....