@audreygwinter Though it'll probably fall back to Arrakis, there are ideas for the rest of the Imperium in the core books like shenanigans from the other Major Houses, the Tleilaxu. I've been wanting to run an adventure, maybe a murder mystery or a heist amongst all the docked lighters and shuttles in a Guild heighliner.
And I have yet to read "Powers and Pawn", the Imperial Court sourcebook.