Here are some the new Rogue Trader books I'd like to see:
Bestiary part 2. Cause you can never have too many monsters.
Xenos Starship Codex with hulls and components, for Eldar, Rakgol, and Ork, so you can buld your own xenos ships.
A new ship book, not only with new hulls and components, but also rules for bulding stations.
A faction book, with new charachter options, equipment, antagonists, and ships, for various factions. Thulean explorers, pirates, Imperial Navy, Rogue Traders, ect.
A vehicle book. This is desperately needed. Not only rules for Imperial vehicles, but also small craft and lighters, and xenos vehicles as well. Perhaps with a system to build your own.
A book of eandeavours. This book is also desperately needed, hopefull with a better economic system.
A dynasty book for Rogue Traders. A book with options to builed dynasties and examples of holdings and estates.
Anybody else got any ideas?
I get the feeling FFG is looking for new inspiration, so now's the time if you have any ideas.