Konami’s working on Rock Revolution in a battle of the band… games, against Rock Band and the Guitar Hero franchise. Activision, now, may be attacking Konami’s current dancing title Dance Dance Revolution with a new dancing franchise known as Dance Hero.
The US Patent and Trademark Office now has on file, an application by Activision to trademark “Dance Hero.” This news doesn’t solidify any real title but tell us their design teams are kicking around some new ideas to attack their competitors turf.
In January 2007, Activision trademarked “Guitar Villain” and “Drum Villain”, with no sign of a game bearing either handle having yet surfaced. This past February, it locked down rights to the title “DJ Hero” without announcing a new product, although rumors of a turntable-based mash-up game bearing the name are beginning to bubble up. (gamespot)
Does another dancing game sound interesting?
Tech Cruch is 
Rhythm games are the new FPS for a lot of gamers, a broader audience of gamers, and the market is thriving and demanding new titles. Harmonix and Activision are at the front of the battle with Konami following a bit behind but still contending (we think) very soon.