An Ork book would be awesome...
I think there are so many chaos related books because the biggest battle that goes on in the 40k universe is SM vs CSM. Its rich in history and easy
for a writter to write books about the subject. Although a SM vs Ork book would be probably be just as easy to write about!
A book of the rise of tau would be quality subject too! and the invasion of tthe tyranid swarms would be pretty cool but a very one sided read as i dont think the writter
could write on paper how the tyranids communicate with each other without taking away the monstrous element of them. Could you imagine a Carnefix speaking
in the queens english?? it would sound pump
you would think the Carnifix was some type of public school boy complete with blazer and cap!
Anyway im rambling but good subject!! its always chaos orientated books!!