“Rock Band 4” Announced
Time to Rock Out with Friends Again
After five years after the release of "Rock Band 3," Harmonix announced that "Rock Band 4" is in development for a 2015 release.
"Rock Band 4" will be heading to the PlayStation 4 and Xbox One and won't include pro-instruments, meaning the more realistic guitars, drums, and keyboards aren't being made for the game. Harmonix is working hard with Sony and Microsoft to try and get the DLC songs bought from the PlayStation 3 and Xbox 360 over to "Rock Band 4," as well as the older instruments to work with the newer consoles.
Source: Harmonix Music Systems YouTube