I just asked a couple Atlus USA folks and they haven't heard anything about this. FWIW. Seems pretty unlikely to me - they're not a big company and they just announced like 4 new Persona games.
Lock Quijote if old
As it happens with most rumors, we advice you to take this with a grain of salt. Taking this out of the way, according to EGM, one of their source claims that Atlus is gearing up to bring Yakuza 5 to the West. While Atlus has done plenty of localizations, this might not be surprising one since Sega brought them last year, and since they already have a localization team – that has brought plenty of Japanese games to the West – it could happen.