Konami, you can try it and see if it works...but I would be careful. It may not work for established accounts unless they were only playing on PC before. That is the purpose of promotions like these. You don't want to end up losing your game.
If it did finally replace the reward for the Special Cool Fire Dragon for iOS, is it possible for me to still get the Elemental Dragon if I already got the Cool Fire Dragon? I tried re-installing and it didn't work.