They're focusing on the creature AI specifically, giving them interactions with each other and more interactions with the player than "run forward and attack", but the update itself is still in the experimental branch and from the sound of things they aren't really focusing on upping the danger very much. If building an ever expanding factory that feeds a space elevator isn't your thing then I don't think update 6 will change that, it's just interesting that I think the devs also recognize that exploring the planet is kind of a weak link in the game right now and that's where they want to focus.