It was easy to forget about, specially since it doesnt even tell us which one of the 3 projects their working on. Obviously it's not the mech game, but it could be the new IP or the "Dark RPG" that they mentioned. People were guessing got a bit, but the trailer didn't show if much.
I really hope it's bloodborne 2 though. Even though I doubt it. They could havw showed it at TGA instead of PSX so they can make people guess and not be sure it's bloodborne 2. But that's a long shot. Maybe because PSX wasn't a full show, I don't know.
And even if it's not bloodborne2, they could announce bb2 at e3.