I know the Hermes system and this novel are in the same universe because of the running god being chased by Death that Riely found was in the other book.
So his newer novels might be connected to these works but not important to the story, more like a cameo or something.
It would be kind of funny if at the end of one of the new novels the big bad fight is interrupted by one of Riley's kids and just obliterate everything and then leave, it couldnt be riley because they wouldnt know how they died having their planet being hit by another planet.