If you have checked on your copy of Rogue Hammer or checked out Rogue Hammer Strike Leader, you will notice we have started adding fluff pages to each army. They are being done one at a time, but the plan is for each army to get about a page or so of fluff text. 

Strike Leader also has 2 extra pages of info covering what I am now calling the Rogue Universe. This is intended to be basically a sort of fan version of various scifi settings you are already familiar with, most notably Oldhammer 40K of course. These versions are not super serious, embracing that this really only needs to exist for the purpose of allowing miniatures battles. We do hope you enjoy them!

Someone asked me online if there might be Parsecs species in Rogue Hammer. Probably not entire army lists, but I think it'd be cool to have a "Unified Space Expeditionary Force" from a far away region of space, so people can get double/triple duty out of some of their units. Time will tell though!