Oshawa sucks. I've flown out of there. It's hemmed in. And with GM gone, they're probably losing a ton more corporate traffic. I've said before, there's a real case for a small GA airport that would consolidate and replace Markham, Buttonville and Oshawa in one location. Can be decent sized enough for GA. Maybe even some domestic traffic. Think Billy Bishop + Buttonville. But anything beyond this is seriously lacking a business case. Incidentally, if they had stuck to a plan of a smaller airport and pushe to release the rest of the land to an agricultural reserve mostly, there'd probably be crews working on it right now....