While the series has a dedicated fanbase and the author himself has mentioned the possibility of more stories in the past, there haven't been any concrete announcements.
However, it's important to note that Dean Koontz is a prolific writer and surprises his readers with new ideas and projects. He's also shown a fondness for revisiting his characters and universes. Therefore, while there's no guarantee, the possibility of future Odd Thomas books isn't entirely out of the question.
Here are some factors that might influence Dean Koontz's decision:
* Reader demand: The success of the existing books and fan enthusiasm could encourage him to write more.
* New ideas: He might have new stories in mind that he wants to explore within the Odd Thomas universe.
* Personal inspiration: He might be drawn to the character and world again due to personal reasons.
Ultimately, the decision rests with Dean Koontz, and only time will tell if he chooses to write more about Odd Thomas.