The Queen II?
With the worldwide event/phenomenon of the Queens death maybe there will be a sequel charting The Queens final days (and potentially the problems before with family events of Meghan/Harry & Andrew in a similar dilemma for the Queen/RF as Diana in the 2006 film) leading to the funeral, the queue etc .
Same cast, director, writer etc.
The Crown will no doubt be doing that as its finale, but this would be a potential Oscar winning movie with Mirren returning, plus a new cast of actors coming in for Meghan, Harry, Kate, William, Andrew etc
The Queen (2006) was an unprecedented hit grossing 123m worldwide (56m domestic) on a budget of 15m and won the best actress Oscar for Mirren (who became an A list movie star similar to Hopkins post Silence of the Lambs) and was nominated for several oscars including Picture, Director. A sequel regarding around The Queens death could double those box office figures (and Oscars)