I think it's going to slow down for a while and then should pick up again.
The reason is very simple: there is far not enough instructors,line training captains and simulators to absorb the huge demand. So what the companies do? Try to attract experienced and rated pilots from other companies. It's just rotating or shifting pilots who are in a position to choose the job they want, including financial package, living environment, and other advantages.
At the end, I can also say that expatriate pilots will be less and less worldwide, because the countries put more and more priorities on their nationals. India is getting more and more equipped with training facilities, China is the same and will even build their own airbuses. Malaysia, Thailand, even Africa with Ethiopia, South Africa,...
So a piece of advice, try to get into a very stable company asap before this situation freezes. And I forgot to mention the oil problem...