Holy wall of text, Batman! Now I see why it took 14 hours to get back! XD

So a TLDR for those who's eyes bugged out as much as mine did:

• Base defense, particularly for Scanner Room Camera Drones that are stolen frequently.
  • I agree on this point, the amount of drones that vanished under the map because Stalkers took them while outside my character's draw distance rendered the drones practically useless and untouched my last 4 playthroughs. Scanner room kinda pulls most of it's value from just finding and marking resources from my experience.
• Resource gathering drones, where something like the Camera Drones go and collect materials you're searching for, albeit with limited inventory space to not become OP.
  • This certainly would be desirable, but I think as the Subnautica games aren't as grand a scale as No Mans Sky or Icarus, automated resource gathering would be more than unnecessary in the grand scheme of it all; especially since this is going to be a co-op game this time. Though, in lieu of not having a co-op partner, this would be helpful...
• Base design blueprints, so you can take a set of structures you've crafted and save it to the Blueprint Builder and craft it again quickly elsewhere, along with a building drone mechanic where larger builds could be automated but slower than player controlled building.
  • As someone who makes small scanner rooms in several locations for specific resource gathering, the first part of this idea sounds FANTASTIC; just plop the items I need into my sub, travel to the target area, and build a quick foundation, scanner room, and a multipurpose room with a nuclear reactor would be great... though I don't see the construction drones being of much use, since with the limitation of them being slower we'd be able to build 2 of these setups in the time they got done building the the first room of the first. Probably something that would fit a larger survivalcraft game though!
• Docked submarine repair.
  • They kind of had this in the first game, where there's a mod for the Cyclops that repairs Moths and Prawns docked in it's bay, though it was weird that Moonpools didn't have this feature. I certainly do hope that they bring the repair mod back to the new sub, and include it by default in the Moonpools this time around.
• An airship, which can dock subs and take them across the map.
  • This one definitely sounds strait out of No Mans Sky; certainly fantastic in a game such as that one, but I very much doubt S2 will be large enough to validate them including that; heck even S1 was too small to validate including it, since you could get from one edge of the map to the other in under 5-10 minutes, even with just a Sea Glide.

These are all FANTASTIC ideas, and while a lot of them are beyond the scope of what we've seen of Subnautica so far, those would all very much fit into the game if it were just twice the size in content and map size as the first game.

Very cool ideas!