TGR - "It's no secret that Activision loves milking the Guitar Hero franchise. Those fake plastic instruments and scrolling note charts have made the publisher a boatload of money, and they aren't about to stop making content while consumers are still walking around with cash in their pockets. Therefore, it really shouldn't come as much of a surprise that rumors are swirling that the publisher is hard at work on a Jimi Hendrix-themed Guitar Hero game.
Perhaps the greatest thing about this rumor is the source. This particular juicy tidbit comes not from some "industry insider" or loose-lipped developer, but rather from Slash."