The sequel will include new styles of gravity manipulation, including ones that allow you to increase and decrease gravity in order increase movement speed or attack power. These new gravity styles are called Lunar and Jupiter respectively, and Sony Japan describes them on the PlayStation Blog with the following:
In Lunar style, the force of gravity is reduced, making Kat lighter and quicker. In Jupiter style, gravity is increased, slowing down Kat’s movements but making her more powerful. You can switch between Kat’s three gravity styles seamlessly to combine the styles into different combos for each situation.”
In other Gravity Rush news, Sony confirmed on the same PlayStation Blog post that Gravity Rush: Remastered, the PlayStation 4 version of the original Vita game, will only be available digitally on the PlayStation Store when it launches on February 9th.