When Mists of Pandaria was trademarked and the name leaked, Tom Chilton stated outright that we shouldn't look much into the name Mists of Pandaria, and implied that MoP was a side project.
Obviously it was for PR purposes and shouldn't be taken too seriously, but neither will I take any sort of statement from Blizzard regarding Titan seriously until the project is officially announced.
If it turns out to be exactly what Blizzard has said it is so far (a completely new project) I won't be too disappointed though.