I don't think he'll be impeached, but the GOP likely loose both houses in congress next year.
Anyways, back to YEG, unless something even more catastrophic happens, we should probably see the record being broken based on the current trends. I also heard a little while ago from a friend who works at ISED that there were rumours about something in the works inside the government in the sense of increasing flights between Canada, Asia, Europe and Mexico. I know not what it would be, but considering the current geopolitical environment, seems plausible.