Given the date, we should probably take this with a grain of salt, but it seems to be a bit too elaborate for an April Fool.
Earlier today, Sega released an 8-bit Bayonetta for free on Steam, and that indeed seemed an April Fool, but there is a secret Easter egg hidden in the game, or better, in its achievements.
Checking the Achievement Page reveals that the pictures used for the achievements themselves are tiles of a puzzle. We put them together in Photoshop, and you can see the result below.
If you squint, you can see an url on the ribbon, pointing to a teaser site with a ten day count down.
Of course, this could all be part of an elaborate April Fool, but it might not. If it really was a joke, why going through the effort of hiding it? And why the count down to ten days instead of a direct announcement?
As of now, the most probable theory is a Steam release of the first Bayonetta game, which wouldn’t be surprising at all considering that Sega and other Japanese publishers had some nice results on the platform.
These questions will find an answer in ten days. For now, we’ll chalk this as a rumor.