House of Kratos working on new, open-world game?

A job listing for a senior level designer posted over at Gamasutra reveals that God of War studio Sony Santa Monica (via) is working on a new intellectual property.

“The Sony Santa Monica Studio is hiring for an unannounced new IP!” the job description exclaims, later also mentioning “open world” game development experience as a plus.

That’s little to go on, but it may be another piece of the puzzle; past listings have sought people with online, and even first and/or third-person shooter and vehicle combat experience. Make of it what you will.