SE about 2-3 years ago announced that they were lifting the bans off of previously banned players, I NEVER seen it happen, also, if your char has been banned for longer than its either 1 year or 2 years (I forget what they told me over the phone) the information is deleted off the server (NOT just items THE ACTUAL CHARACTER) with NO chance at being brought back. I am assuming that because this was the case, they were not able to implement bringing back banned characters, and before it's said, they probably wouldn't start bringing back banned chars for that specific reason, and would also not lift the deletion after 1-3 year thing either.