Kotaku's Jason Schreier, known for having some of the best sources in the gaming industry, is hinting that Sony will skip E3 as well:
E3 is in the worst shape it's ever been -- last year it was half-empty, and that was before they doxed thousands of attending journalists -- so Sony skipping again would make total sense. I'd expect them to announce their own big PS5 event(s) instead
— Jason Schreier (@jasonschreier) January 13, 2020