I came across this one today. Not sure how accurate it is but this is certainly news worthy.
https://www.tradewindsnews.com/cruise-and-ferry/carnival-believed-to-be-eyeing-sale-of-cunard-and-seabourn-brands-cruise-insiders-say/2-1-848809?fbclid=IwAR28q4Ln5551cf-_BD0kLLd06DtYVieKd29B8kietvJ6ir-pnZsK4SRV_ao
I note that both Cunard and Seabourn upper tier lines.