Hm, I find myself in a weird balancing act of both liking and disliking the way they've set this story and the hubs. There really is only the Prague hub, and everything that's non-Prague is more single mission rather than hub-tastic. On the one hand, it's nice to revisit Prague and see how it changes as the story progresses and you get a slight grasp on fallout depending on certain choices you make early in the game, on the other hand I kind of miss that feel of world travel and having fresh hubs to explore and find side-quests and get in touch with the locals.