Rumors were posted on the thread relating to the new Royal Mail freight contract but nothing specific.
My guess would be that the prospect of setting up in the enterprise zone at nqy is too good an opportunity to miss out on.
Would guess STN and EMA or just one of those ? But if they are opening up some sort of new facility it would seem odd to do that for just one flight a night. I would however imagine that if they set up something that a NQY facility would Then take over handling mail for ISC over LEQ but that would just be a guess.