Egger took over the position at Audi from Walter de Silva, and has been responsible most recently for the Audi A6 and A3, as well as the 2010 Quattro Concept and the E-Tron Concept. He previously was head of design at Lancia and then at Alfa Romeo, where he was responsible for the achingly gorgeous 8C Competizione.
If Egger does move to Italdesign, his successor is likely to be Marc Lichte, the Volkswagen designer behind the current Golf. Of course, these personnel changes haven't been officially confirmed, and Audi is thus far refusing to comment on either Egger or Lichte's possible career shifts. We'll stay with this one, so sit tight.