Honestly
How are they going to get American pilots to come to the UK and work as Captains without the right to work? If they give work permits out they have to advertise locally before any nonresidents can be employed. Plus I don't know any Captains in the States that would want to sit those horrible 14 exams. Plus Yanks can go to the desert and earn twice as much with no taxes. Doesn't seem that logical. Also, the airlines in the States are short pilots with all these regional jets flying around.
Management likes to dream...........