Online publication Beefjack has reported that Atlus has no plans to bring Catherine, for the Playstation 3 and Xbox 360, over the the west. This comes from the PR of Atlus US.
Catherine, a peculiar mix of psychological horror and block sliding puzzles, of all things, was release in Japan on February 17th, and immediately jumped to the top of the sales charts there. While it's potential for success in the west is somewhat questionable, it wouldn't be the first niche title to do well here.
However, those looking forward to the title can still take hope: this isn't the first time a PR firm has stated that there would be no translation, only for one to appear further down the line.