Would, seeing that you are not active on WoW appoint a maintainer for the addon. This would allow it to be updated without surrendering any rights you currently have.
As incentive that maintainer can ask and receive donations for their work and can continue until you choose to revoke that authorization.
I ask you the rights holders to at least consider this idea and if you would reply to this to let me know if you have read this..
Thrumbar