"In exchange for the longer wait, we have decided to release the premium DLC planned for the title free of charge."That is a great trade off. The first game's DLC gave us extra missions and costumes and provided a lot of fun additions to the main campaign. I wouldn't expect any less for the sequel.
Gravity Rush 2 is set to launch itself to the skies on Jan. 20th, 2017. This not only allows for a little more work to be done on it, but gives it room for sales because it won't be competing against games like The Last Guardian.
Source [ Playstation Blog ]