I had an idea where they could implement Horizon and Motorsport combined hybrid style next generation so you have the option to exit the circuits and then race out side in Horizon mode so it caters for both players.
Or they could even add Motorsport circuits as DLC in Horizon so they can keep them running together and release every 2 years like they used to.
It was just an idea but the thought of playing a Motorsport Circuit and then going to the car park (it then loading Horizon cars and physics) and racing out the gates to off road or road tracks point to point around each track!
I know it probably will never happen or could be possible to do easily but I thought a 'hybrid' version could work with all the devs there in one team now.
It is also a shame as I too have followed Turn 10 since the beginning and it is very sad to see them get split up like this. I also agree it is great with the controller and I love the new tracks they added by the end.