Vader is about to face a corrupt Imperial governor with a sandstorm-creating superweapon with the help of his old friends Kitster, Wald, Sabe, and Ochii (Guy who eventually tries to hunt down Rey for Palpatine) and an old Podracer he's about to use (Although not the same one).
I'm not making this up-from this own site:
https://www.cbr.com/star-wars-darth-...-tease-marvel/