As has been said, hopefully the engine and the Crossgrade are coming out in the next few weeks. My question is this: Since it looks at my Logos 4 to check the price, do I need to keep Logos 4 to get the Crossgrade? Said another way: Would I be able to upgrade to Logos 5 via the free engine, and then later get the Crossgrade? Or do I forfeit the chance of getting the Crossgrade if I get the free engine? Hopefully that made sense.