This all ''intel'' is based on Georg Karcher article in UK CAR mag, which is utter rubbish as always, since this guy has no clue lately about what's going on in VAG, where around 75% of all R&D is currently done by Audi!
Only recently Johan de Nysschen dismissed such claims about Porsche designing future Audi platforms as pure nonsense (interview available on YouTube)!
Best,
D