I would love to see a mode later in development that made the game a bit more "realistic," as it goes, to play. Things like:
- weight limits actually mattering (and stuff like gold, books, etc., weighing some amount) and not only that, but the bulkiness of items mattering too (can't carry like 7 great axes even if you could handle the weight because there's no way to hold them all, etc.)
- your characters getting tired before eventually becoming exhausted, forcing a rest
- needing to eat and drink and, therefore, pack supplies
- tying into the above, potentially getting sick if you refill your water from a sketchy source or eat raw meat, etc.
- no fast travel (other than to camp, I suppose)
- some sort of rest/camp cooldown so you can't spam it constantly, and/or a time system so that things are happening while you're resting and if you just spend a week getting through one tiny area because you rest every time you use a single spell, things will have already happened that you miss
- torches having a limit to how long they burn before going out
- no just sending all your extra gear to the camp so you can pick up everything
- needing arrows or bolts for ranged weapons, which have weight and bulk
- if you end up putting in a day/night cycle and weather, adverse weather like snow meaning you need to bundle up, heat meaning if you're dressed too warmly you get heat exhaustion, etc.
And I'm sure there are plenty more ideas that people could have. I'm going to love the game either way and will play it through with multiple characters, but it would be fun to have a mode that was like a really strict DM who paid attention to all the little things that most people hand-wave away. I know it wouldn't be for everyone, but in games like this I always see cool half-features that end up not really mattering, like the weight limit here when you can just magically send everything to camp, or once-a-day spells or abilities when you can just rest after every fight. It's like, why bother with those limitations in the first place if they functionally don't exist? I'm fine with the main game mode being like that, but I'd really love to see a game that actually enforced that stuff.
Anyway, just an idea! If anyone else has ideas for what a "realism" mode could involve, feel free to list them!