Once I click on the “Restore Deleted Character” icon I get the “Retrieving character list” notice and then it immediately freezes. After a few minutes I get the “World of Warcraft is not responding” noticed and just choose to close it.
Also, my restore list mostly consists of characters deleted before the Warband feature. But there are some post-Warband update as well.
Forgot to add that this is on Dalaran-US server.