11 bit studios announces Frostpunk 1886, calling this a "brand-new title" in the franchise, despite simultaneously calling it "a project that revisits and expands upon the beloved city-builder and society survival experience of the original Frostpunk." This is to launch in 2027, and its Steam Listing is now online. The New Game Announcement is just a tease, featuring a panicky voice, and pretty poor smoke physics considering that's all it shows. But it features new Unreal Engine graphics, one of the features the new game/remake is emphasizing:

But Frostpunk 1886—so titled to honour a pivotal moment in the timeline of the universe, when the Great Storm descended upon New London—is no mere visual overhaul. It builds upon the core of the original, expanding it with new content, mechanics, laws, and—perhaps most excitingly—an entirely new Purpose path, offering a fresh experience even for the most seasoned players.

Reimagining Frostpunk in Unreal Engine also allows the game to become a living, expandable platform, bringing with it long-awaited mod support—a community request that was previously impossible to realize due to technical limitations of the original engine—as well as the possibility to add future DLC content.