Makes sense. They can't sell the Euro 5 version after the end of August and as the current Plus 8 is a variant of the current Aero it is logical that the 2016 Euro 6 Plus 8 will be a variant on the 2016 Euro 6 Aero.
Then of course for next year at Geneva 2016 they will show the new Roadster (Plus 6) and the Aero 6. I could order one for my 70th birthday