It looks like Mastodon are getting ready to work on some new material. Brann Dailor confirmed the news on Instagram:
“Had a beautiful walk through the woods around Asheville with my Dad and stepmom. Perfect visit for some inspiration as we’re about to really dig in on some new @mastodonrocks material. Feeling the doom.”
https://www.instagram.com/p/B4fOt9TA6Qy/?utm_source=ig_embed