The official artbook companion to Shinra Bansho Kaikoroku, the last installment, is now up for pre-orders at Premium Bandai, from now to July 31st, with an October release date. Due to limited quantities, orders will be up either until that date or if the limit is reached.
Here is the order page, which also contains more information. (You may be redirected to an international page at first – simply follow the link a second time) It should be noted that as is typical of Premium Bandai, they only ship within Japan, and so you will need the help of a forwarding service to place an order. (As an example, From Japan is one I’ve personally used, but there are many others)
The book features concept art, large print art of the upcoming final installment, card art of the previous chapters, and a product guide, among other things. It includes a slip cover and an exclusive card featuring previous heroines Noin, Mujina, and Meryl.
As a reminder, the final installment of the card series with wafers itself is still up for pre-order at places like AmiAmi, no forwarding service needed. I myself will order many boxes and probably cry a lot.