It's not entirely unlikely that Sony doesn't plan on returning to E3. Shawn Layden explained some of their issues with E3, earlier in 2019.
"So the trade show became a trade show without a lot of trade activity. The world has changed, but E3 hasn't necessarily changed with it."
But it may go deeper than that. I forget the specific details now, but last year there were reports from people working in ESA (who organize E3) about how the future for the show beyond 2021 is very uncertain, because of restructuring within the organisation and the companies that own ESA. One of those companies I believe was a ratings board, which was involved in some controversy that presumably Sony, Nintendo and Microsoft, who are all part of the ESA board, wouldn't want to be associated with.
That the future and direction of E3 is in disarray is not unbelievable when the leaked plans for E3 2020 were essentially confirmed by an ESA representative through email. But they played it off as just brainstorming ideas as they do every year. Which I'm sure they do. But the ideas are probably not that drastic usually.
Anyway, since this E3 is right before the PS5 launch, I think it may be a good idea for Sony to attend it, even if just for that year.Last edited by Hiku - on 11 January 2020