With Kinloss down I suspect there will be a tactical pause before any decision on Lossie or the Jocks will revolt.
Anyhow surely the best plan is to keep it with Bornado GR4 until about 2016 when that fleet will almost certainly draw-down somewhat. Then Lossie could go on C&M and be developed for the JSF (aka Dave) with the remaining Bornadoes at Marham until that closes circa 2022.
Fantasy basing - you've gotta love it!