I think sending some of that flying back to mainline is a good idea too. True it will mean longer upgrades to jets for many of us, but it will also lead to better future careers when we find ourselves at a mainline carrier. As far as all this return of props stuff.... well we all know that many of the subsidized routes will always be flying small props...why, because they already have planes that might only seat 19 people that only carry 2 or 3 people on a regular basis. In fact many times these planes fly completely empty. Does anyone think they are going to start flying RJ's empty. I don't think so.
I wonder, effecient or not if a return of prop flying could bring some order back to the airline industry.

XtremeF150