I can't see any of the UK suggestions happening. Apart from what I gather from previous posts on here can only be deliberate awkwardness - for want of a better description - by the powers-that-be at Wroughton, I don't believe any of them could be financially viable.
Visiting aircraft would probably be fine, just arrive at a different venue, but TFC's are a different matter. I can't see the logistics of enough pilots and fuel costs adding up.