Devin Townsend has revealed that Chad Kroeger (Nickelback), Steve Vai, Anneke Van Giersbergen, and Che Dorval (Casualties of Cool) have all guested on his new album “Empath.” Previously announced guests include: Elliot Desgagnés (Beneath The Massacre), Mike Keneally (Dethklok, etc.), Morgan Ågren (Kaipa), Sam “Samus” Paulicelli (Decrepit Birth), etc. The album is expected to be…