Previously announced Rock Band 4 and now looks that the developers of Guitar Hero series want to enter in a new competition with that game by launching a new part. The news did not come after it has formal published in the site Gamereactor but it might delete thereafter But an user on NeoGAF site was able to get details about it, and that is reminiscent of that company Activision has sent an invitation to the German media to attend the event Hamburg Rock City in the first of April. Are expected in the event that the company unveils a new part of the game for the new generation machines in order to remain in the arena of competition for musical games, if there is nothing definite yet and we have to wait until the beginning of April to make sure of that.