I really enjoyed the whole experience (playing on easy makes Aloy a goddess in battle rather than a clumsy hunter) but I wish they had held off on the Zeniths until Horizon 3 and instead had the game be putting GAIA back together as the main mission.
I’m hoping H3 moves away from the mainland and becomes a robotic Wind Waker set across an island chain like Hawaii. Overriding a Tideripper and sailing through those waters would be fun.