The CryENGINE website has details on some changes to their EULA which include the revelation of plans for Linux support in Crytek's game engine (thanks GamingOnLinux via Ant). Here's the deal:

Let's talk about the pengui... elephant in the room If you read the above paragraph, it might not come as a major surprise to you, but we are proud to announce that we will add an Open GL implementation and support for running your EaaS games on Linux with one of our next updates. For now, Linux support will be limited to the game launcher, and the Sandbox editor will still require Microsoft Windows. And of course, Linux support will be subject to the same developer-friendly terms as on Windows: Your monthly subscription fee will allow you to sell your games for Linux in addition to Windows, with no additional fees or royalties required.

While we can't pin an exact date on this update, we wanted to give you an early heads-up so you can start planning your Linux ports today!