Tecmo Koei has already announced it will publish Atelier Ayesha: The Alchemist of Dusk (it is no longer called The Alchemist of Twilight Land) in Europe in the first quarter of 2013. NIS America, who usually localizes the series in North America (and Europe, as well, but Tecmo Koei distributes it there), has yet to announce the PlayStation 3 RPG for North America. (Update: As pointed out in the comments, NIS America did once confirm an English version of the game, and promised an update within three to four months after, but it didn’t arrive.) If the ESRB is anyone to go by, they won’t. But Tecmo Koei will.
The games rating board has given Atelier Ayesha a Teen rating—its publisher is listed as Tecmo Koei. This would make sense, considering Tecmo Koei acquired Atelier developer Gust Corporation in December 2011, which was after NIS America had already announced Atelier Meruru, the latest localized Atelier game, for release in North America and Europe. With Tecmo Koei being Gust’s parent company now, it makes sense that Tecmo Koei would localize their games.
Stay tuned. With an ESRB rating out, we expect Tecmo Koei will make an official announcement soon.