New poll indicates 81% of Canadians want the border to remain closed, probably until a vaccine is available. With that sort of number, I can't see the government re-opening it. You still cannot even travel from province to province in many cases without having to go into a 14 day quarantine. The new outbreak in Australia is a bucket of cold water. Also, this is interesting and probably explains why.
https://www.youtube.com/watch?v=UuXtfS6QIR8Dr Henry featured in that video was instrumental in crushing the original SARS outbreak and has also dealt with ebola in Africa, so she is probably one of the most qualified experts on pandemics on the planet.