Catherine Elsworth interviewed King for Goodreads. Below are some interesting bits.
On working with his sons:
Interesting news about Stu and Frannie from The Stand:
There's one Stand story that still needs to be told, although it's not a long one. I happen to know that when [Stand characters] Stu Redman and Frannie Goldsmith headed back to New England (with their baby), Frannie fell into a dry well. That's all I know. I'd have to write the story to find out what happens.
You can read the whole interview here.