I tried to post this from my iPhone while away from my desk but I am not sure it went through so here goes another shot at it.
I understand that the island in which you are to kill the chimaera is gone. I also understand that the NPC that delivers the AQ40 quest chain is moved and the quest chain is un-completable. (I do not play beta so I cannot go by anything other than posts and screen shots) What I am interested in knowing, an pardon me if this has already been discussed as I am unable to find any information, is if the recipe still remains in-game. For example if you have the book in your bank but have not learned it. Is it going to to be one of those things that if you have it... you keep it. If you do not, you will not be able to aquire it by any other means other than the Auction House? Is this going to be a very rare (more rare than it is already) collector's item?