Jimmy Kay from Canada’s The Metal Voice recently spoke to Ex Dio DC4 guitarist Rowan Robertson and Jeff Duncan Armored Saint DC4 Guitarist at The NAMM Show on January 26 2018. They spoke about a New Armored saint Album, New DC4 album and their thoughts on the Dio Hologram Tour
Watch the interview here:
When asked what both guitarists were currently up to,
“I’ve got an upcoming release from a group that we both play together in, called DC4.” Rowan Robertson
“This new DC4 Album should be out around April 2018 Springtime, it’s just good hard rock and roll music in your face.” Jeff Duncan
Jeff Duncan was asked if Armored Saint was working on a new album
“We will probably put out a new album next year 2019 from what I am told and we got a bunch of touring happening for Summer, South America the USA and Europe.”
Rowan Robertson was asked if he would release the Unreleased unheard Dio rehearsal tapes he owns
” No (shaking his head with a Yes) there is two songs which were just done on a boom box in rehearsal and I just really would like to get permission from management, cause I don’t want to get in trouble.”
When asked about Rowen Robertson’s thoughts of the Dio Hologram tour
I think it’s great, it keeps his memory alive and I don’t see any problem with it at all”
Rowan Robertson was recruited to join the band Dio when he was only 17 years of age. The experience launched the young guitarist from obscurity to international fame nearly overnight. Robertson’s first and only album with the band, Lock Up the Wolves, was released May 15, 1990
In 1988, Jeff Duncan joined heavy metal band Armored Saint, where he replaced Dave Prichard after his passing
Metal Shock Finland (World Assault ) 
Jeff did not replace David Prichard. He was brought on-board after Phil Sandoval left the band. The first tour he did was with Dave, John, Joey and Gonzo. After David passed Phil came back into the fold.
Some of the best guitar playing I’ve seen was Dave and Jeff trading off solos in Book of Blood. Amazing stuff!