Mastodon is preparing for a 2027 concert in Anaheim featuring members of Metal Allegiance and other notable bands, while also releasing a limited 'Marrow Deep' vinyl pressed with actual mastodon fossil dust, highlighting their connection to prehistoric themes. The band has reflected on personal grief and the legacy of band members, including tributes to Brent Hinds and the emotional journey behind their most cathartic album. Their recent activities include live performances, interviews, and collaborations, reinforcing their ongoing influence in the metal scene.