Rock incoming.

Acticivision's Guitar Hero franchise has gotten some sweet love on Wii; Legends of Rock took the series online in a surprisingly solid way, and World Tour had it's own Mii-enabled mode and brought downloadable content as well, something still not widely done on the system.

Now, with the fifth entry set to drop on Sept. 1 in the U.S., the official Guitar Hero Twitter feed is going all Wii rumor-crazy.

WOW Wii!!! Rumor is that there’s going to be some amazing new features for #GuitarHero on the #Nintendo #Wii – What could they be?

Care to wager a guess?