The only thing I see happening is fewer and fewer American students populating my local flight schools. I would probably say that about 80% of most students in my general location alone are foreign. True, if you can CFI at one of these schools, you will have a full load.
What this means for the future, I don't know. The regionals went on a hiring spree last year and many are backed up with training and upgrades. Even if things do slow down, I expect it to pick back up at some point.