Probably not. Even the thing that was shown several years ago, and that hasn’t been mentioned again since, wasn’t a sequel. It was a completely different style of game, and a prequel with different characters.

The first game ends on a sequel hook, and left a lot unresolved. People who asked for a sequel mostly wanted to know what happens next. They weren’t asking for a procedural multiplayer open world with different characters in another time frame.

BGE ends like the Empire Strikes Back. It’s a bittersweet ending in which main characters have evolved, but the conflict is not resolved at all… and there’s even a good guy still in deep shit. Obviously it needs the sequel to wrap everything up.

BGE2’s announcement is like we got nothing after Empire Strikes Back for a decade, so no Return of the Jedi, and George Lucas came back to tell us “we’re doing the prequel trilogy now, no plan on ever concluding the old storyline”.