
Originally Posted by
Thalassian Bob
2. I imagine Argent Crusade high elves were too busy helping out in Northrend or the Plaguelands of Lordaeron to return to their ancestral homelands to help there.
Most of the Silver Covenant were probably banned from entering Quel'Thalas after the Northrend campaign, as we saw that Lor'themar had exiled their leader (and rightly so). Before then, since they are an organisation based in Dalaran, they may have been helping with reconstruction efforts there after Archimonde destroyed the city. And, by the time, they were finished there, they may have heard word that the Sin'dorei had aligned themselves with the Horde and then refused to return home in protest.