https://www.youtube.com/watch?v=T0lMQl6ZMGs
Apparently sheer exhaustion has caused Alan Ball to take a break from all of those naughty vampires and werewolves in Bon Temps. According to Forbes, Ball isn’t leaving but will step down from running the writing staff. Which, if you saw last season, is probably for the best. Ball will remain as executive producer.
https://gizmodo.com/why-this-was-the-worst-true-blood-season-ever-and-how-5840833
UPDATE: Turns out he’s not staying to produce after all. So long Ball!