After the Blue Priests I am torn between two different splat books: Ape World or my own "home setting" Ape World should be self explanitory-space faring apes that can be characters Gorillas are Warriors, Orangutans are Rogues and Chimpanzees are Technicians. If Traveller has the Vargr, then Rogue Space has Damn Dirty APES!
Next is my own setting that I came up with a few years ago when I was working on a simple sci-fi tactical board game. Humans, bugs, and robots are the three "races" filling and at war in the galaxy. I won't say much more than that but if you have a preference on what to see next let me know.
Lastly, I am working on additional starships and equipment list. Some will pop into the supplements but most will be in the Rogue Space booklet. I think once the next setting is done I'll start work on the compilation booklet.