The game could potentially do decently in Japan. That's about the most it's got going for it. In NA, I'd expect max 300k lifetime. Europe, 150k-200k and Japan max 400k. So I'm predicting maximum lifetime sales 900k. I think that's being kinda optimistic though considering how niche this game really is. I'd consider it a minor success/miracle if it outsells the original PS3 game.