Jimmyfenix
Member
Dubbed "Rockudrama" a narrator will tell the story of your band's trials and tribulations as your group was riding high... before it all came crashing down. Before the inevitable comeback, of course. Rockudrama will also include its own new venues, Rock Shop items and gameplay challenges.
The other major addition in this DLC is in the title. Rivals mode will allows players to asynchronously challenge each other to various songs. There will even be options to join a crew and compete against rival bands as a team effort.
Rock Band Rivals will be available as an expansion, but also bundled with a full Band Kit for $199.99 (or your local equivalent). There will also be an $89.99 Wireless Fender Jaguar Bundle that includes the core game, Rivals DLC, and the upcoming foldable blue Fender Jaguar guitar controller (which will retail for $69.99 on its own).
http://www.eurogamer.net/articles/2016-07-19-rock-band-4s-rivals-dlc-detailed