Well, I have it on good authority, from an Audi employee, that the next generation A2 will be produced by Seat, with R&D from Audi and the final badge being Audi as well.
Rest assured that it won't be as good as the car we all know, drive and love now. Whilst Seat do make some fine cars, they just aren't screwed together well enough in my humble opinion. It's certain that they cannot rival anything coming from the A8 factory in Neckarsulm.
Cheers,
Mike