Tetsuya Mizuguchi, creator of Rez and Lumines, is announcing his new game at E3, according to a tweet from developer Q Entertainment.
The studio tweeted this:
"Q Entertainment's new game to be revealed on Monday @5pm PST at the LA Theater. Set your clocks now! Return to SYNESTHAESIA!!"
Sounds like this is the project known as "Eden", a title announced last year by Mizuguchi on stage at Ubisoft's E3 press conference.
The game will apparently provide "new sensory experiences", but that's all we know of it.
Whatever it is, you'll find out in the early hours of Tuesday morning. Get the skinny on the Ubi presser here.