The second Typhoon base will be Wideawake so that the pilots can do hypersonic PIs in free airspace and still be poised for Southern QRA (Mount Pleasant) and Northern QRA (Bruntingthorpe).
The JCA might go there too on the grounds that it is so noisey it needs a population limited environment (donkeys don't count) it will also be easy to embark (or is that embarque?) on any passing CVF as it plies its way to project power in West Africa - which is the only SAG scenario that it appears in.
Assuming of course that the 100 year experiment hasn't ended and the Army have their hands on everything in which case everything will be at Southern airfields, parked in very straight lines and never flown.