Hate to be a party pooper, but I think it's quite unlikely that they will release this (CryEngine + BeamNG) for the public for free. If they did that, I'm pretty sure they would have to get a license (expensive) from CryTek, or sign an agreement with them that allows free distribution (unlikely).
They are propably just trying to make themselves seen and heard by the big developers at this point, who could actually afford to license the CryEngine along with BeamNG for some proper game in the future.
These are just my theories, so don't take them too seriously.