"A lot of people know that there are new consoles coming," Gearbox CEO Randy Pitchford explained. "Gearbox is in development on a couple of original things -- new IPs -- that we'll announce later." An archived stream of Pitchford's announcement starts at 5:22:34 here.
Last year, Gearbox revealed that it had significantly reworked its in-progress shooter Brothers in Arms: Furious 4, announcing plans to "evolve" the game into a new franchise. It was not clear if the reworked Furious 4 was among the two next-gen games Pitchford teased.
Gearbox will provide closed beta access to an unannounced game as part of its upcoming Community Day event.