Tokio Game Show is not far away... and the next Generation is around the Corner. But there are 2 reasons i think Japan Studio could reveal something big...

1. Everything from them announced is already released, so we know nothing what comes next...

2. They mentioned last year that they reveal something New this year, so what better place than TGS 2019 could be...

https://twinfinite.net/2018/12/sony-japan-studio-unannounced-game/

Toriyama-san, who recently worked on the aforementioned Astro Bot Rescue Mission, Déraciné, and Bloodborne, mentioned that in 2019 studio will be preparing to reveal an unannounced title in development, so he’s going to gear up for the launch of a new project.