The plan is for this to go like American Horror Story; each season is a new show with new settings. The second season will be about some other "feud" between well-known people.
My favorite part of the Joan/Bette story is the Oscar acceptance stunt. I thought the young actresses playing Bancroft and Page hit it out of the park with the pity for Crawford.
BTW, one of the interesting things about Sarandon and Lange is that they are quite a bit older than Davis and Crawford were at the time. Sarandon is 70, playing the 53yo Davis, and Lange is 67, playing the 57yo Crawford.