Recall, though, that The Assassination Game
was pushed back by almost a year from its original publication date. (June 2012 actual vs. September 2011 original) And according to the interview the author did on the Trek collective, Bad Robot really pored over the book. It seems things like races or ships that may have been background "characters" were asked to be removed or replaced, possibly for relationship to plot elements or just because they didn't want them there.
So it's certainly possible for Bad Robot to have a direct hand in a tie-in (something written about 2010) to the point of delaying it quite a bit with that item still coming out.
(Speaking of which, I really wish someone in TrekLit would get Mr. Gratz to do an "adult" Trek novel.)