Lord of the Rings Extended Edition on Blu-ray

Got an email from Amazon.com, that there will be a "Limited Extended Version" of Lord of the Rings on Blu Ray.

Source:  amazon.com

As I already own the DVD extended version and the quality is good enough for me and there are no additional perks with this new release, I am not sure, if I am going to buy it.

Saldly, there is no release date...