“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.”
No conferences at all in 2019 is more than likely to happen. Sony will probably drop the price permanently to $199.
I'm expecting Sony to drop a nuke at the reveal of the PS5 in 2020.