UltimateUnknown on 24 November 2013
Knowing how Atlus operates, I'd imagine a 3-6 month window between the Japanese and US release of Persona 5. And if you are unlucky like me and happen to be in Europe, then there's no guarantee you'll even get an Atlus game here. The wait could go up to 1-2 years.
As for X, since I imagine Nintendo are publishing it, I'd say you'll get it within a few months of the Japanese release given that they learned from Operation Rainfall, which I think they did. Or so I hope.
