The Roland BK-9 has now been removed from Europe's largest online store, Thomann. It is marked as terminally out of stock.
As I know from a local dealer, it was already unavailable directly from Roland in December.
So I have been one of the last buyers in Germany (in December).

This is a summarized demo I've made with the BK-9, extremely spreading from classical piano and Baroque ensemble to Stevie Wonder funk (played live except the Bert Kaempfert sequence, done with its sequencer). I think it was a really good purchase for 1,298 euros, sounds of good quality and appealing 76-key shape and weight.

https://soundcloud.com/rorosetree/roland-bk-9-in-a-nutshell-demo-bits-from-barock-to-funk