I noticed on my third play through a couple of things that are hinted as either unfinished features (probably not finished due to time constraints) or minor lore hints that you just don't find out on a first play through so just wanted to see if anyone is able to share some other minor details.
Hinted Features:
-Quads seem to have been hinted at being sold in rail crossing and at the cores shut down merchant, probably precursor to the jet skis implementation.
-Cave hopper/shrimp meat seems next to useless beyond one or two quests, combined with the amount of fish in game seems to imply a cooking system was planned (probably suspended as to de-clutter crafting).
-Loads of non hostile NPC's around the temple of tschort with minimal dialogue and no quest affiliated with them.....Either implies a quest was meant to be affiliated or just there for world building.
-Pets seem to have been planned at one point (I think) based upon the amount of animal handler chars in the free drones and other factions, dude mentioning tameable rathounds, Faceless's bionic/armored rathounds. Combined with the interaction with k-9 in junkyard makes me feel like there was some plans for animal companions but probably got dumped due to game play limitations (which is a shame because I want a doggo :3).
Lore:
-You can actually get dialogue from Abram explaining how his throat got fucked by some biocorp mutagen or chemical weapon in depot A junkyard, didn't pay much attention to his wheezing prior so just interesting to note lore wise.
-A random disk in the junkyard seems to be made of the same material as the oculus but unable to get any chars to acknowledge what the fuck it is.
-Maura can be found in the free drones base after the jailbreak implying that the free drones have some interesting oculus connections (HAIL TO MONOLITH !!!!)
If anyone has anything else to add feel free to share