Just had a GM reply to a ticket regarding if it is actually obtainable at this stage, it would appear that it is:
Hello Luctus,
This is Game Master Nisierys. Thank you for contacting us about this issue.
I am sorry that it took us this long to get to your ticket. Many people have returned to the game and all of them are full of questions. I hope you can understand.
I have looked into this and The Bonereaper's Hook is currently available in game. However there is a catch like with every hidden appearance
) I would turn to the forums and share my thoughts with other players.
Think of it as a puzzle
Kind Regards,
Game Master Nisierys