Dragon’s Dogma isn’t Capcom’s only new IP. After its reveal at Captivate 2011, Capcom said they have “at least one more” new IP planned for 2012. A new trademark from the publisher might’ve outed its name.
Capcom Japan trademarked Ixion Saga, recently. It also registered the domain Ixion-Saga.com, which currently turns up a blank page.
Ixion, for those who may not know, is a character of Greek mythology who killed his father-in-law and was branded an outlaw for murder. After Zeus invited him to Olympus strictly out of pity, he made a go for his wife. As punishment, Zeus sentenced him to burn on a fiery wheel for all of eternity.
The classic story sounds intriguing enough. Hopefully Capcom sticks to the source material.