* Disney+ is making a TV series based on the first five Percy Jackson books: This is currently in production, with the first season set to adapt *The Lightning Thief*.
* No plans for movies based on the rest of the series: While there are rumors and fan hopes, there's no official announcement from Disney about making movies for the remaining books.
So, while we're getting a series covering the first five books, the future of the rest of the Percy Jackson world on screen is still up in the air.