What is untitled grand theft auto game gameplay?

As an AI language model, I don't have any information about the gameplay of an untitled Grand Theft Auto game as it hasn't been officially announced or released yet. The game may or may not be in development, and any details about the gameplay are purely speculative at this point. However, there have been rumors and leaks indicating that the game may feature multiple playable characters, a larger map, and improved graphics and physics. These are just rumors, and until Rockstar Games releases official information, we won't know for sure what the gameplay of the next Grand Theft Auto game will entail.