Looking at Final Fantasy XIII's importance on a regional basis.

[EaglesEye379]

The uncertainty was about NA and EU release together or not because of languages.

Sigh.

First, the PS3 version will come out only in Japan, only with Japanese text and voices. (They are not really considering a 360 version because of install base in Japan but they didnt outrightly deny this though).

Then later, the PS3/360 version will come out SIMULTANEOUSLY in NA with English text and voices.

Then even later, the PS3/360 version will come out SIMULATANEOUSLY in EU with EU text and voices. And SE is trying to get this as close to NA release as possible.