Lets see if any of my ideas have been thought of(i bet yes).
1. Dwarf vision- In dungeons this would be very useful,a bit different from elven vision,i would say dwarf vision helps you see in mines,dungeons anywhere underground. Elven vision would be for areas above ground.
2.Yep someone mentioned glowing weapons items,this would be a substitute for dwarven sight.
3.Climb trees. If you could do this, logically you could see further and thus target enemies from far,now if they couldnt climb they would be in trouble.
4.For rogues- a decoy device to send enemies the wrong way and thus help a rogue sneak up on the enemy.
5.Ok this may sound dumb but what about riding a horse to get to destinations faster? E.g you do a quest for a farmer who owns a stable and then for a small price you can rent the horse for a short while,in addition,he can carry a bit more weight,reason i say this is becuase i get encumbered alot(playing a rogue) so i think it would help a bit.
6. This one is asking too much but you can always dream...what if you can choose the way you attack someone,i.e if you wield a dagger,you can choose how to use it in combat,i.e slash,stab or something else. Depending on armour and the type of creature one method would be the best.