Hah! I can remember when the original Star Wars came out and was the biggest thing in human history! People waiting in line for a movie - impossible! People seeing the same movie more than once - insane! People seeing the same movie a dozen or a hundred times - one of the Seven Signs of the Apocalypse for sure!!!
And yeah, I also remember rumblings about a trilogy of trilogies aaaaaaallllll the way back then. This Master Plan is a long time in the making.