Atomic Betty Redux was a planned sequel series to Atomic Betty. Atomic Cartoons made the announcement via their updated website in June 2010. The show was expected to come out in 2010
Few details are known, but it was been revealed that Betty would be "all grown up", which could either she'd have been a teenager or an adult, which she first appeared as during the episode The Future Is Now!, the last episode before the original series "Atomic Betty" ended on January 29, 2008.
However, all references to this proposed series were since removed from Atomic Cartoons' official website, and no further news has been heard regarding the planned series since 2010.
After 9 years in development hell, the project was revealed in early 2019 to have been cancelled. According to a staff at Atomic Cartoons, the characters had moved away (this confirms that the characters from Atomic Betty had gone their own separate ways).