Much, much better article than the Kotaku or Variety one -- https://www.gameinformer.com/2018/11/14/sony-interactive-entertainment-is-not-attending-e3-in-2019
“As the industry evolves, Sony Interactive Entertainment continues to look for inventive opportunities to engage the community," the company told Game Informer in a statement. "PlayStation fans mean the world to us and we always want to innovate, think differently and experiment with new ways to delight gamers. As a result, we have decided not to participate in E3 in 2019. We are exploring new and familiar ways to engage our community in 2019 and can’t wait to share our plans with you.”
When asked if Sony would push its event off-site, similar to how Electronic Arts provides a show adjacent to E3, PlayStation senior vice president of communications Jennifer Clark elaborated further saying, "We will not activate or hold a press conference around E3."
