Trusted sources in Japan are claiming that Square Enix is to bring a massive amount of new content to Nintendo's DS portable, including offshoots from some of the company's most popular titles.

The biggest rumour is that of a Final Fantasy XII side-story, exclusive to the Nintendo machine, that will be a full-price release and complete game, and is likely to be available within the next 12 months. Final Fantasy V has also been mentioned, which - according to reports - will be squished together with number VI in the series.

The Japanese rumour mill is alive with claims that updates of all pre-32Bit RPG offerings of both the former Square and Enix stables will be made available in re-worked and utterly buyable forms to owners of the DS, though at time of going to press, the big talk is centering around Final Fantasy XII being continued in portable form. FFXII has encountered criticism for its linearity and lack of imagination, with many fans expecting a more complete experience. It would seem that Square Enix is set to expand much of its franchise on a format that has surpassed all expectations.

Formal clarification is said to be scheduled for next month's Tokyo Game Show. We'll bring you updates live from the showfloor.