Established insider and data miner TezFunz shared his thoughts on GTA 6 development. He also answered a fan question about supposedly rebooted development of the game. TezFunz seems confident that GTA 6 will be released in next two years.
There were some rumors about GTA 6 release date before. Some competent insiders with Tom Henderson and Jason Schreier are also sure that new game will be released in 2023-2024 window.