People, this is not releasing on PS4. If Sony meant to, they would have made it cross-gen from the start, like Spider-Man MM.
The longer you wait, the more people will have moved from PS4 to PS5. And PS5 was going to be sold-out at launch regardless, by all metrics. The moment to maximize profits on a PS4 versions was now, not in 6 months; it would be a literal waste of money and horrendous financial planning to conciously do things in this order. Which means Sony decided from the get-go this would not come out on PS4.
In regards to PC, who knows one day, but I wouldn't hold my breath. The trailer saying it was coming out on other consoles and PC was a human mistake, that final slide was identical to the one from the Deathloop trailer, so somebody just mixed up the two files in editing. It makes no sense to conciously announce something you know will be unpopular, see it's unpopular, then walk it back in 30 minutes. Just like they didn't walk back Horizon FW coming out on PS4 because people when bitching when it was announced.