No one will take risk with such huge amount, universities will also have to revise their refund policies. As I asked from Algoma uni they said if visa gets rejected they will refund my fees minus the processing fees of 300$. She told me to take online classes without visa, I said her that duration won't count towards my PGWP, that point has been cleared, then I asked her what if I take online classes and my visa gets rejected, will I get the refund, she said yes you will get full refund minus 300, but the thing is they have to revise their refund policy for fall 2020 because no one is fool enough to risk such huge amount, unless someone is really fool enough