My guess would be some sort of transport to pick up kit following the B1 deployment, or a charter passenger aircraft to pick up the people. We'll have to wait and see!
Back tracking the aircraft movements on FlightAware (using Reg. number), looks like Kelly Field Annex (AFB) in Texas late last night to Bangor. Then into Nuremberg this morning, then to Fairford. All time estimates GMT
need someone who has heard initial tower comms as he should have declared PoB at some point. This would give an indication as to arrivals or departures (of people)
I was at 27 end for the departure just now (didnt see anyone else there!). I didn’t hear PoB on my scanner at any point, but can say they were definitely picking up as saw bus after bus of people getting on.