Another difficulty level for me would mean : more powerful monsters and clever AI. I see compolaints here that can easily be corrected by the players themselves. Too high AC ? Well don't use that super armor, wear something lighter. Too many rests ? What if you send all food to camp so you don't have enough on you for a full rest ? I didn't try it, but wouldn't you also get the dream scenes on a partial rest ? Don't level up when you can. Fight the goblin camp at Lv 2 and Moonrise Towers at Lv5 if you find those unchallenging. Don't use potions and grenades unless you"re getting hammered and on the verge of losing. Put your party in difficult positions, instead of advantageous ones. It seems to me that you can make any battle as difficult as you want.
Now I wish it was the other way round, and one could make some confrontations easier. I don't have super armor. It seems I find only the failed homeworks from magical school. Right now I'm down in the mindflayer nest under moonrise towers. The party is depleted in spells and HP. I can't long rest or fast travel here, can't find a way back out, and I'm supposed to do what will probably be the biggest boss fight from chapter 2 in this state.
