I think this suggestion would sync well with the makes elves different (1), (2) RFE's.

This suggestion is in two parts, so if you disagree with one and not the other it may make it harder to vote one way or the other. Who cares!

Part 1.

This is purely based on what the names connote to me. Perhaps the imagery is different in your mind.

High elf: it brings to mind the pictures of a very tall elf with its nose stuck in the air haughtily.

Grey elf: Grey connotes 'boring' or 'bland' in english.

So what you have is 'pompous elf' and 'bland elf'.

Suggested name changes:

High elf -> Wood elf.

This brings to mind an image of an elf perched on a tree branch with a leaf green hood and fingers dancing over a harp.

Grey elf -> High elf.

Since their description suggests pompousity it would be more apt to label _them_ the high elves.

Part 2.

Mist elves out-elf the elves! Calling them a mist elf is like calling a regular elf a mist human. I also don't like the description in the manual, it is way longer than the others and seems to demean the other elves that are already supposed to be spectacular beings!

I am not sure what I'd want to call them, but I suggest removing the 'elf' identity entirely for the above reasons. Some suggestions (not sold on any of them):
Wisp/Whisp
Esper
Sprite