Not long after Tales of Xillia's Japanese release, it seems eager fans have already shed some hope into the possibility of this awesome game getting localized.
"Poked around in Xillia‘s files. Found something interesting: all of the game’s text is in files named *.SDBJPN. Every string has a constant identifier, such as STR_BTL_TUT_CHAIN_ALVIN. The interesting thing is that there are other SDB files: SDBENG, SDBFRA, SDBITA, etc… all have the same identifiers associated with empty strings. So the game seems to be localization-ready."
From what Aeana found, it seems that the game is actually localization ready, containing some file containers for English, French and Italian.
Of course, let's not jump to conclusions just yet. A solid statement from Namdai is what we need right now. For now, let's just hope that this little discovery is indeed pointing to the right direction.