Nag Ashwin has not made any announcements about his upcoming directorial projects. He has been saying that the second part of Kalki 2898 AD is his top priority.
However, recent reports from Bollywood media suggest that Nag Ashwin has put Kalki 2898 AD Part 2 on hold, as Prabhas is currently occupied with other projects like The Raja Saab, Fauji, Spirit, and Salaar 2.
Prabhas is expected to spend the next two years working on these films.
Until Prabhas completes the filming of these four movies, Nag Ashwin will need to wait. As a result, Bollywood media has speculated that Ashwin might take up a new project with Alia Bhatt in the meantime and complete it.
However, Nag Ashwin has not made any statements regarding these reports and has not confirmed them.