Harmonix revealing new game tomorrow

Harmonix will announce a new game tomorrow, but it's probably not what you think:

The rhythm game developer is expanding its wheelhouse, but it's kept quiet about its new efforts so far. The only clue we have is an August job listing for a combat designer from the company, who would "design and tune combat skills and abilities; overseeing creation of robust combat AI systems for minor and major combat encounters."

That position may or may not be for the game in question, but fighting with fists/guns/lasers instead of plastic instruments or jaunty dance moves would be a change of pace for the studio (if not the industry).