GSC Game World adapted the current material for Stalker 2 to reflect the game's Ukrainian roots as opposed to having Russian spelling.
Stalker games are all set in the fictional version of the Chernobyl Exclusion Zone and the developers, GSC Game World, are Ukrainian themselves. Still, the series has had Russian spelling on some of the most visible promotional material thus far, most notably in the first game.
The first title in the series is subtitled "Shadow of Chernobyl", where the location name uses Russian spelling. In Ukrainian, it would be "Chornobyl" instead. This is exactly the change that was made to the upcoming Stalker 2 , which is now subtitled "Heart of Chornobyl". As you can see with the gameplay trailer below, it was originally supposed to be "Chernobyl", just like in the first title that spawned the series.
GSC Game World didn't officially announce it or state the reason otherwise but it's highly likely it has to do with Russian aggression on Ukraine where the devs remained, despite the ongoing war.
Before it started, GSC announced that Stalker 2 would be postponed to December 2022 as the game needed more work but with the war coming in not long after, it remains when the newest title will actually be released. At this point, it's more likely it won't come out before 2023 but nothing is official yet.
The devs did state
they will complete the game
but the development will resume after the war.
