The Thousand Faces Chapter was the first chapter of the Southern Country chapter of Little Fox Demon Matchmaker. It was released on August 11, 2017.
While waiting for the TV series, you can also click on the link below to read the original work of " Little Fox Demon Matchmaker " to understand the plot in advance!
The release schedule of the JJK manga isn't fixed. Sometimes it comes out monthly, but it can also be affected by various factors. Keep an eye on the publisher's announcements.
Sorry, I don't know when 'True Story' is coming out. But you could try looking on movie review sites or following the accounts of the people involved in the project to find out.