Sony has announced that Horizon Zero Dawn, God Of War and Gran Turismo TV shows are in development. The announcement was made at a Q&A during a Sony Business Briefing for Sony Pictures Entertainment (as detailed by a Resetera user watching the live stream).
The Horizon TV show will live on Netflix whilst the God of War TV show will live on Amazon Prime. A home for the Gran Turismo TV show has not yet been confirmed.
This is in addition to The Last Of Us and Twisted Metal TV shows as well as the Ghost of Tsushima movie that we already knew were in development. Sony also said it has 10 projects currently in development based on PlayStation franchises.