Over in Hong Kong, PlayStation's Asia branch just announced a limited edition Final Fantasy XIII and Final Fantasy XIII-2 pack.
The bundle includes both games (with English and traditional Chinese subtitles and the original Japanese voices) as well as eight eight post cards. It'll be out September 13 in Hong Kong for HK$558 or US$72. No word on a Western release.
FINAL FANTASY 25th Anniversary PS3™ FINAL FANTASY XIII/FINAL FANTASY® XIII-2 Dual Pack Limited Edition [Asia PlayStation]