Well, in 2019 alone, the number is more than half a million (around 640k):
https://www.cicnews.com/2020/02/642...ign-student-attraction-0213763.html#gs.yspsby
The number is for enrolled students, though. Still, it would give us an idea how many students are potentially graduating or have already graduated.
For sure, even those who already applied under CEC, would also apply under this temporary policy. Especially if it would mean expediting their PR application. Unless there would be another mega draw like what happened last February, wherein all CEC applicants were invited.
Still, a positive news for international students.