I'm trying to find info, but I'm out of luck. I know they worked on the Multiplayer for Crysis 2, and 3 but that's not them working on their own full game.
I'm glad Crytek bought the Homefront IP though. So much potential, but it was just a flawed game. Crytek UK having full created control,and Cryengine 3 can certainly make this game what Homefront should have been.
Part of the reason Free Radical was bought by Crytek was to help them enter the console market. They have since done the multiplayer component of Crysis 2 and 3. They have also been working on Homefront 2 for maybe 2 years or so I have lost track. At any rate I think the last rumor I read is that it will be a next gen game.
Free Radical did Haze and we know how that turned out. They were developing 2 games for Lucas Arts that were cancelled with change in management. I'd like another TimeSplitters or TimeSplitters like game, for now I'll see how they do with Homefront 2 when ever its released.