The Baron route will be completed in due time. Same with Mnesis's. Focusing on a single route at a time is better for me for a number of reasons, but whether or not a certain character is more popular than others wasn't a factor in this decision.
We'll still see plenty of him in Fang's route.
His route will likely also be the next to get the focus after Superfang's route reaches certain plot points about two thirds into the story.