A leaked video from a pre-E3 Expo event supposedly reveals that spin-off Final Fantasy Versus XIII will be rebranded to become a main entry in the long-running fantasy series.
It also revealed that Final Fantasy XV will be available for PS3 and Wii U.
If true, Square Enix will be expected to make the announcement during the E3 Expo next week.
Last year Square Enix said that Final Fantasy Versus XIII, which was first announced in 2006, had yet to enter full production.
Direct sequel Final Fantasy XIII-2 was released earlier this year, and was followed by regular content episodes and costumes.
The E3 Expo will take place in Los Angeles from June 4 to June 7.
> E3 2012: Digital Spy's coverage from the world's biggest gaming expo
Watch Final Fantasy Versus XIII's 2011 trailer below: