確かに"Ton Koopman Newsletter Vol. 2002-3"で次のようなのが来ていました。

We have good news !

Ton Koopman has succeeded in finding a new company to continue the Bach
Complete Canatas Series. As you might know Warner Classical discontinued the
series earlier this year after the release of Volume 12.
We are happy to announce that in october 2002 Volume 13 will be released under a
new label.
Details can not be given at this time but will be in due time. You will be informed via
this newsletter or directly on our website.

私も、ブリリアントであってほしい。１２巻×約５０００円を出した身としては。