I just came across one of these adorable cats and am looking to sell it. According to http://www.wowuse.com/auctions/emerald-dream/us/items/8491/ the last one to be sold on the Alliance AH went for 15k, and there haven't been any other sales in over 14 days. The bidding shall start at 12k and you can buy it out for 15k.
I have like 3 or 4 of those on various alts. Hope they keep their value when they become unbound :D