There may be a new type of hero coming in the future.
Activision recently filed a patent for the name "Drum Hero" in a filing with the U.S. State Patent and Trademark office.
Filed on October 30, the patent covers the following:
"Toys, hand-held games with liquid crystal displays, musical toys; action figures and accessories therefor; arcade games; coin-operated video games; electric action toys; handheld unit for playing electronic video games; electronic toy drums"
With Guitar Hero, DJ Hero, and Band Hero already released by the publisher, a Drum Hero title isn't too much of a stretch. While this may be a simple case of Activison protecting the name should they ever want to use it, it could also signal plans to expand the franchise.