Today's German paper said that the LBA (German aviation authority) already put the cause down to a hard landing causing a fuel leak. The report didn't say so but I suppose it was the fuel leak that led to a fire.
This was not a 'Goodyear blimp' but a blimp from Lightship hired by Goodyear.
Goodyear has been reported as planning to re-equip with airships from Zeppelin, I suppose the Zeppelin NT model that can be seen flying around the Friedrichshafen area in the summer.