The best location to purchase the new scriptures is through the website: scriptures.shop
The original print-on-demand arrangement through Amazon was more expensive than the arrangements made with another print-on-demand publisher, and so Amazon was replaced. Paperback versions in various sizes can be purchased through this website.
The leather-bound version was arranged with pre-orders and pre-payment. However, a few extra copies were purchased with donor support, and they will be sold once they arrive through the same scriptures.shop website.
Apparently now the only copies available through Amazon are used, older paperback copies that were printed for people to review before voting on accepting them. If you want the final product, go to the website linked above.