Some senior members suggested that there might be around 150K submission for PGP 2020
Last time, IRCC sent out invitation emails roughly 45 days after the form closed. If we speculate the same this year, you would expect to receive email or annoucement from IRCC around Dec 15 - 20... Hopefully it would be earlier than that but who know, it could be later too
I doubt they will send stuff so close to Xmas.
Likely mid Jan 2021.