I really would want a Space Book as well.... But also, an Underwater Colonies book would be pretty nice as well (If Megacorps are building outward towards space, they gotta be doing the same below as well!)
True, gold mine of ideas there. Secure research labs, testing grounds for space colonies, farms, isolationist societies. I would say thats current to the setting time line so far as well so would immediately usable.
Don't think anyone would blink at x corp already has or is building an undersea archology at this point.
Resorts in Hawaii, i would be surprised if japan didn't already have something like this in the works in real life.