In the Instagram post, Todd Phillips did not post anything but photos, and he did not add any comments to the current situation. See for yourself:
The script cover date suggests it was completed before we even had time to write about the sequel rumors . Now that the movie is officially confirmed, everyone is curious if this production will repeat the success of its predecessor – The Joker is the highest grossing comic book-based film, winning two Oscars: Best Leading Actor (for Joaquin Phoenix), Best Original Music.
Nothing more than what Todd Phillips showed on Instagram is yet known. We will have to wait a little longer for more information, such as the story, the release date.