No his plan is far worse. This is a literal quote from him in like the 80s.
“If I were really cynical…I wouldn’t write what I’m writing now, these novels. I would start some sort of medieval sword-and-sorcery thing and say it’s a trilogy…and then keep writing it for the rest of my life.”
He doesn’t even plan to end them. And now that there’s an ending via the TV series I’m sure he’s even less motivated. He just wants money and fame.