That is bad news that publication is ended. I have all the volumes from 1962 to 2016. There are some great articles amongst them. Would it be possible to produce a PDF version with a fee to download it from a link with a password. That way the production and printing costs would be minimal and committed readers would still get the product they want. Perhaps the BAA could take this on as a service to members and a memorial to Patrick Moore. With the material already written for 2017 it would be worth a try to see how it worked out for one year. How about it BAA?
British Astronomical Association
Supporting amateur astronomers since 1890