A developer that worked at Lost Boys Interactive, a support studio owned by Gearbox Software, may have let slip a number of unannounced Gearbox titles. In a now deleted LinkedIn post, the developer made references to Borderlands 4, Tiny Tina's Wonderlands 2, and a new Brothers in Arms game. Also mentioned is that each of these titles are using Unreal Engine 4 (UE4).
This removed LinkedIn post was first reported on by Eurogamer...