JMS announced on August 12 that he's completed Harlan Ellison's "The Last Dangerous Visions" and it's been sent to the agent who will hopefully take it to auction for publication. JMS wrote:

THE LAST DANGEROUS VISIONS is now finished, 112,000 words by some of the most visionary writers of the last 48 years, right to the present moment. Proud and utterly exhausted from all that went into this.

https://twitter.com/straczynski/status/1425735122075021316