https://www.bleedingcool.com/2018/08/15/joss-whedon-says-fox-pulling-buffy-license-dark-horse/

Joss Whedon said in an interview (https://www.cbr.com/buffy-the-vampire-slayer-finale-joss-whedon-interview/) that Fox is taking back the licenses to Buffy and Firefly, but he's planning to do a Dr. Horrible comic for Dark Hor