Greg Ondo from his Club Cubase months ago mentioned 13 was being worked on, and parts of 14, and 15 as well. He also said that a new version is probably “not imminent”. He also mentioned that probably many Cubase users have not fully utilized what’s offered in Cubase 12 already. That’s here-March 21 2023 Club Cubase Live Stream - YouTube Go to 00:27:32.
On Cubase 13/14 etc February 10 2023 Club Cubase Live Stream - YouTube go to 03:02:11.
On Cubase 13-February 10 2023 Club Cubase Live Stream - YouTube
When it’s close to be release I’m guessing more will come out. Someone asked about a maintenance update. He said “soon”.