It is still on the MQB architecture but has enough differences to warrant a generational renaming, mainly in the interior and drivetrain.
The big change, we expect, is going to be inside. The rather dreamy VW design chief Klaus Bischoff has told the press that it’ll be super digital inside, as CarAdvice.Au reports. “It’s a revolution. It’s really a total digital environment; the only analogue aspect is basically the steering wheel,” was the quote from Bischoff, back in January 2018.
This does not sound very promising but the warning signs were everywhere. Expect much more electrification in 2020 across all cars. The MK8 GTI will have hybrid assist just like the next Focus RS. I expect that to be the last generation with manual.