Volkswagen AG is still looking for a successor to former chairman Ferdinand Piech, meaning the interim holder of the position, Berthold Huber, is likely to stay until at least the end of the year, a German newspaper reported on Sunday. Following the departure of patriarch Ferdinand Piech in April, who resigned after losing a showdown with CEO Martin Winterkorn, former union boss Huber was meant to hold the role for only a few months, Bild am Sonntag reported.