It happened once with the real raid ID, they stuck to there guns with no flying and it looks like they are going to do the same with the capitals. They far more often then not stick to there decision. They straight up said legendary's will not be transmoggable and they aren't going to change there mind on that. period. Look on the forums and you will see posts as far back as 2011 asking about legendarys being transmoggable...it is now july of 2014 and blizzard has still held there ground...it isn't going to happen. Ever.