According to jim-butcher.com/posts/2017/storypalooza, ''Brief Cases'' has just made a biggish step forward toward publication, and, apparently, ''Peace Talks'' is slated next. One can still hope!
However, I'll remind editors that main space pages about both books will not be allowed until at least two of three events have happened: 1) an official release of a publication date; 2) an official release of cover art; 3) the official release of at least one sample chapter on JButcher's site. '''Public''', rather than to a restricted group of RPGers.
UPDATE: jim-butcher.com/posts/2017/brief-cases-to-be-released-summer-2018 gives a date and an index.