I mean if there is anything we have learned about new destinations it will be three small areas. A couple of small caves, so many "invisible kill zones" exploring would be nearly pointless. Hell the give us ability to get to massive heights, but then kill us for using the very jumping hard baked into the game is ridiculous too. So what would be exciting about skyscrapers you couldn't get to the top of? It's not like we would get 1/100th Horizon exploring