One of the devs had posted to the forums at
http://forum.naturalpoint.com/forum/ubb ... #Post38833, asking for community suggestions on implementing TrackIR in RO2, but I haven't heard anything about it since. The launch was pretty rocky. It seemed like it was rushed out the door, but Tripwire's done a great job patching things up. They're pretty supportive of the mod community and just released their full SDK through Steam. You can download it from Steam by going to your Library and filtering it by Tools instead of All Games.
It's based on the Unreal Engine and I'm not sure if the SDK will provide modders with enough access to the in-game camera controls to allow for TrackIR to be implemented. But, it would be really cool!