Ubisoft appears to be developing a new IP titled 'Fighter Within', after domain registrations referencing the unannounced title were spotted by Fusible.
Fighter-Within.com and FighterWithinGame.com both appear to have been registered by Ubisoft within the last two months, with a similar URL referencing the game hosted on Ubisoft's official website.
Fighter-within.ubi.com currently displays the message "cOMING SOON".
Earlier this month, Ubisoft revealed that it "plans to share details on a new next-gen IP currently in development" during Gamescom. This is probably it.
Ubisoft has already announced multiple new IPs due to launch on PlayStation 4 and Xbox One, including Watch Dogs, The Crew and The Division.
Ubisoft told VideoGamer.com this morning that it does not comment on rumour or speculation.