MP,
I think you'll find that RL either is, or soon will be, transferring to Aero after many years in Canadian. Whether you view that as a positive or not, I have no idea, but I guess Aero rate him or he wouldn't have had the offer.
The question of what will happen with transfers depends on how many Canadians wish to stay living in Canada. If they work for a non-Canadian employer, they don't get the same tax break. I imagine this will have the most bearing when guys come to make any decision as to whether to transfer.