Hi Burton,
chances are good that there will be an EyeX SDK for the Unreal Engine — I just don’t know when, because there is plenty of other stuff on the to-do list as well. So stay tuned, we’ll post updates on the dev zone as soon as we have something that we can share.
And the same goes for the Cry Engine as well. Of course we’d love to support them all, it’s just that we don’t have infinite crowds of developers.