It would be nice if Forge World didn't feel the need to shoe-horn Marines into every IA book. Mymeara really didn't need them and Armour of Gork would have been fine without. I just hope that Orpheus actually uses them in the story, rather than them being add-ons for the sake of sales.
Edit: and the Imperial wins are usually rather pyrrhic or tagged with long lasting negative consequences. Vraks was trashed and its armouries emptied, the IA8 mission was mostly a failure, we know what happened with Badab, and the others have been straight losses.
I would like to see a book where the Imperials are on the offensive and actually win, rather than it being a defensive or reactionary action. IA8 was a big disappointment in that we had this huge airborne assault force... who all get shot down and surrounded and fight a defensive ground war.
Edit edit: I'd also like to see much more xenos stuff in the books, Mymeara was a major let down on that front.