Since the sunwell is a mixture of Arcane and Holy Energies, I believe that Blood Elves should have the option for Blue Eyes. After all, this will also make a ton of sense for Mages as well.
P.S this implies here to all races, but I think the eye colour options should be seperate to the face options as well.
EDIT:
Please, do not mass flag this thread! This is an open discussion for everyone to discuss about Blue Eyes for Blood Elves. Just like all those who like to create threads about High Elves, people also have rights to discuss about Blue Eyes for Blood Elves and request it too.
The point of the thread is about customization of Blood Elves. Stop taking threads like these as threads about High Elves. Oh thats right, when it comes to asking for customizations for Blood Elves, High Elf fans get upset, yet, they think they have every right to spam the forums asking for a Horde Race
I do main a mage though. But lol, you made me laugh.
Pure arcane appears white and/or violet. However, when used to bend other types of magic, it takes on the characteristics and appearance of those magics.
https://wow.gamepedia.com/Arcane
Sorry, no blue glow for you. Blood Elves can have blue eyes, but will have to stick with Fel or Light glow forever.
Blame Velen and his compassion for everyone. I would have left them all turn into Wretched.
You’re imbuing Blizzard with a great deal more consistency than I think they deserve here.
By this metric blood elves (not void elves) who dabble with void magic, death magic or nature magic should have different coloured eyes. But they don’t. Yet.