https://www.bbc.com/news/business-68735699 That's the nice thing about physically retiring, they can still have digital avatars and VR concerts.
https://ultimateclassicrock.com/kiss-sells-catalog-name-logo-makeup/
https://variety.com/2024/music/news/kiss-sells-catalog-pophouse-1235960263/
https://exclaim.ca/music/article/kiss-sell-catalogue-name-likeness-to-company-behind-abba-voyage
Of course an AI version of KISS would only be as accurate as its programming. Nevertheless, digital avatars and concert surrogates will gradually grow in popularity.