With uncertainty constantly looming over the future of Black Sabbath, bassist Geezer Butler gave a bit of an optimistic idea, hinting at a possibility of releasing another album.
"We've still got four tracks leftover from the album," Butler told Time Out, "so maybe we'll fill in the other four or five tracks and put out another album."
The bassist made sure to point out a few matters though. "If it's right," he said. "We wouldn't do it just for the sake of it, or the money or whatever. But yeah, maybe."
During a separate Guitar World chat, singer Ozzy Osbourne also noted he's up for new challenges with Sabbath.
"I never say never," the vocalist said. "I never thought after 35 years I'd [be back with Black Sabbath], have a Number One record and a sold-out tour. It's weird, the album was recorded and released in 2013, and it was Number One in 13 countries ... the number 13 is driving us mad!"
Considering a possibility of "13" turning out to be the final record from the metal icons, Ozzy added, "All I can tell you is that if it's good-bye, we're ending it on a high note.
"Instead of with 'Never Say Die!,' which we didn’t leave each other on friendly terms. The only thing I'm sad about is [the fact that] Bill Ward couldn't work things out. But I'm up for another Black Sabbath album and tour. If we can, great. If not, I'll just carry on doing my own thing," he concluded.