Updated - August 19, 2021
Following the previous reveal within QuakeCon 2021's schedule, an unknown Quake game has been rated by the Entertainment Software Rating Board (ESRB). Listing release plans for PC, PS4, PS5, Xbox One, Xbox Series X|S and Nintendo Switch, it's unclear if this is the same project as the "revitalised Quake" game mentioned before, or something separate.
As spotted by Reddit, Quake 1's beta branch on Steam was also updated, suggesting an incoming release is planned. You can see the full ESRB rating below and we'll keep you informed when we learn more.
Original - August 13, 2021
Earlier this week, Bethesda and ZeniMax Media outlined their full QuakeCon 2021 schedule. Starting on August 19th, this digital-only event offers three days of streams, tournaments, updates on existing/upcoming games, plus more. However, they might've accidentally leaked a new Quake project early.
Several minutes after the official QuakeCon 2021 schedule went live, eagle eyed fans spotted a few details about the opening show, which celebrates Quake's 25th anniversary. As reported by XboxEra, that description initially referenced a “revitalized edition” of Quake.
QuakeCon's 2021 Schedule Details A “Revitalized Quake”
As for what "revitalised" means here, that's hard to say, but a remastered edition seems likely. Within the original description, that confirmed:
Quake is back, in this special stream John Linneman from Digital Foundry talks to Jerk Gustafsson of MachineGames about the title’s iconic legacy and what it meant to both of them. The pair will also discuss the additional content MachineGames have contributed to this revitalized edition.
For the unfamiliar, MachineGames are best known for the rebooted Wolfenstein games and upcoming Indiana Jones project. However, they developed a Quake mission pack to celebrate the game's 20th anniversary in 2016, Dimension of the Past. Whether this'll be a similar deal is unclear but for those interested, you can find QuakeCon 2021's schedule above.