Square Enix had registered the domain for something called DeusExTheFall.com, DeusExTheFall.net and DeusExTheFall.co.uk. Could this be a new Deus Ex game Eidos Montreal is working on?
We aren't too sure since an enhanced edition of Deus Ex is also on the way for Wii U, which this could perhaps relate to.
Either way Square Enix has been teasing all over twitter, "Are YOU ready for The Fall?."
Whatever this relates to, it sounds like we'll find out soon.