Developer of the game Rock Band 4, Harmonix, has revealed that it is planning to release a new expansion for the game later this year, bringing new multiplayer modes and various other features to the game. In a statement released by the developer it states that online multiplayer will work similiar to Quickplay, though mode is slightly modified to provide a fair and streamlined experience for console players looking to play the game online.
"Harmonix has been talking about bringing online multiplayer to Rock Band 4 well before the game shipped. [..] We’re dedicated to bringing players only the best in music rhythm gaming, and having the ability to play with your friends anytime, anywhere is just another step in this process. We’ve heard our community loud and clear — as one of our most commonly requested features, it’s time to bring online multiplayer to Rock Band 4." said Criss Bruki, Community Manager at Harmonix.
Rock Band 4 released last year, October 6th 2015, for Xbox One and Playstation 4.