https://www.pcgamer.com/watch-the-first-gameplay-trailer-for-borderlands-3/

Gearbox confirmed Borderlands 3's existence at its PAX East panel today, as well as calling 2019 "The Year of Borderlands." We managed to learn quite a bit from the Mask of Mayhem teaser, but the trailer accompanying the announcement—take a look above—is considerably meatier and chock-full of action and character reveals. 

Along with giving us our first proper look at the four new Vault Hunters, including a new Siren with fancy magic arms and a big robot fella, the trailer speeds through the roster of new and returning friends and foes from across the previous games. It's a lot to digest. Old Vault Hunters are returning, and yes, Claptrap is back, along with that guy you buy guns from and a bunch of spin-off characters. If they didn't die in the other games, there's a good chance you'll see them.