I don't have anything to add to the argument about potential shortages of pilots in th EU or US, but I do know this; Airlines are ordering a LOT of regional jets at the moment. More than would be required for replacement of the existing fleets. Most of these are new types from Embraer and Bombardier (ERJ/CRJ).
In addition to this Sukhoi are developing a new regional jet for sale on the international market & hence jumping through the JAA and FAA certification hoops. They wouldn't spend all that money without a reasonable expectation of sales.
Logic dictates that all these new aircraft will require pilots.