Lens roadmaps never used to really be a thing. A company developed a lens, then they announced it, then you could buy it, and that was it. But consumer demand has changed. People are more fickle and prone to swapping brands if they think the competition will offer something better suited to their needs. So, now they seem to be coming thick and fast.
So, in order to try and convince people that they are going to deliver what people want, Nikon has updated their Z mount lens roadmap. There are 13 previously unannounced lenses in the list. It adds some popular classics, like the 60mm and 105mm macros, and completes the holy trinity with 14-24mm f/2.8 and 70-200mm f/2.8 zooms.