Except, it was stated by the devs, several times, the corruption (mainly the eyes) is slowly being reverted due the energies of the Sunwell.
"Lady Liadrin, leader of the Blood Knights, is shown to have golden eyes in her Hearthstone hero artwork. Some blood elves have lost their fel corruption and gained golden eyes due the cleansing of the Sunwell.[39]
In classic World of Warcraft, blood elves had normal white eyes with pupils. The Sunwell Trilogy also depicted them with this appearance. The Priest unit in The Frozen Throne had glowing green-eyed models, while before the expansion, in Reign of Chaos, it had glowing blue eyes.
Ultimately, it is a matter of time before the fel-power induced green glint reverts back to the blood elves' regular high elven eyes. This process, however, may take a fairly long time.[24]"
https://wow.gamepedia.com/Blood_elf