Following this thread. As far as leaks are concerned, both the next issues of Famitsu (Japan) and Official PlayStation Magazine (UK, since Sony killed it here in the US years ago - RIP print media) are coming out THIS FRIDAY and both have already confirmed MASSIVE blowouts on the PS5. This is why we knew last week that Sony had to hold an event this week - which was then set to be this Thursday until it was delayed. I have no idea how they are planning on handling that - the magazines would already be printed & shipped, but I suppose they could retract them and delay them a week? Or at least try to? If any of them slip through though, someone will be posting tons of actual legit PS5 information...
OPM is not affiliated with Sony in any way. Its just the name of the mag. Having a 'MASSIVE blowout' means absolutely nothing as they have hardly been a credible source for info for a long time. Just last month their headline read 'horizon sequel info!' which just ended up being the comic book.
As for Famitsu I can't say. But I highly doubt these publications have anything substantial, especially now during the quarantine.
The only issue with delaying the event is going to be the PS5 console reveal since production appears to have started (going to start soon).