now we know that we will have straight orcs, we could have blood elves with different colors of eyes
Throughout many expa and patch we saw many blood elves with blue eyes
Astromancer Darnarian
http://www.wowhead.com/npc=25133/ast...delviewer:10+0
Sunreaver Frosthand
http://www.wowhead.com/npc=68758/sun...delviewer:10+0
Teris Blightsunder
http://www.wowhead.com/npc=81946/ter...delviewer:10+0
we can see how Lanesh the Steelweaver has blue eyes in two different expa MoP and legion
http://www.wowhead.com/npc=69259/lan...delviewer:10+0
http://www.wowhead.com/npc=114887/la...delviewer:10+0
Sunreaver Assassin in dalaran and isle of thunder
http://www.wowhead.com/npc=68756/sun...delviewer:10+0
http://www.wowhead.com/npc=70045/sun...delviewer:10+0
the official art of lady liadrin we can see that she has golden eyes
http://www.hearthstone-decks.com/upl...me-liadrin.jpg
some people say that that image is only HS, but we can see that Blizzcon 2017 World of Warcraft Voice Actress
https://www.youtube.com/watch?v=pWJ3pIl0KDA
is the the official image of lady liadrin in the panel
Lady Liadrin has golden eyes in official art of wow and HS
I think different eye colors would be a very good thing as a personalization feature for blood elves