The last I heard regarding Kenwood, it was announced at the Tokyo Ham Fair in 2022. Kenwood stated they are still fully vested in Amateur Radio.
The TS-990S, I don't know if it's still in production. DX Engineering received two units about two weeks ago, but both apparently sold, and now it's listed on DXE's website as "Not Available". MTC Radio received stock too, but only one is now available, it may be the last one ever.
HRO shows it still active on their site.
MLS out of the UK, released their typical periodic video, but mentioned Kenwood, stating we should look for something new from Kenwood in late 2023.

Listen around the 1:30 mark in the video.
https://www.youtube.com/watch?v=fwCU1eVwlxE&t=105s