Destiny 2 Gameplay reveal was today:
Full Gameplay Reveal livestream
With the sequel comes new things, including new powers.
So far in the trailer, I saw a Void Shield for the Titans that can be thrown Captain America style, as well as a hardlight wall a Titan can put up to use as waist high cover in a fight. Only new power for Hunters I saw was an electric Bo Staff.
New weapons are obvious. Swords are making a comeback, this time they seem to have smaller one handed ones you can get. A new weapon type, probably being a heavy weapon, are Grenade Launchers, something, funny enough, one of my friends on Xbox talked about with me on a weapon that would be cool to get. There's also a Minigun that you can get (or it could be either a new model of Machine Guns, or even a new Exotic MG).
New vehicles are also coming. The Sparrows may be getting a new look, but that's no the big thing. That new big thing, no pun intended, are TANKS FOR THE GUARDIANS (no more cowering behind rocks every time a Fallen Spider Tank or Cabal Colossus Tank shows up)
EDIT: Also, full confirmation from Bungie that Destiny 2 is on PC was revealed during the Livestream.