I agree if you love the current body style now is the time to buy it. The last model year is going to be the most loaded and reliable of the bunch. Also, Ford usually doesn't upgrade the powertrain first year so I think maybe waiting a few years or until the first refresh makes sense.
Still I can't help but follow all this news like a hawk. It's exciting to see what we have in store for the next 7-10 years on this new platform.