Borderlands 4 is releasing earlier, potentially to dodge the black hole that is GTA 6
Either that or they managed to get Claptrap to behave.

When a video game changes its release date, it is very rarely adjusted to come out sooner. We're so used to games being pushed back weeks, months, and years (yes, I'm looking at you, Silksong) that when a game goes the opposite direction, it comes as a genuine surprise.