Rockstar Games has already begun “preliminary” work on Grand Theft Auto VI, claims an unnamed source who recently spoke with TechRadar to reveal interesting bits about the GTA franchise. According to the source, the developer is yet to finalize a location for the game, but it’s pretty much given at this point that the next installment in the open-world action-adventure series will be based in the United States.

The same source also shared that it was around 2002, when Grand Theft Auto: Vice City was released, that Rockstar Games was seriously considering making a new GTA installment which was set entirely in Tokyo. However, the entire project was ultimately abandoned for two major reasons. Firstly, Rockstar Games realized that the Grand Theft Auto brand has always associated itself with USA. Heading outside that region would have been problematic. Secondly, the developer would had to change a lot of aspects, such as in-game brands, company names, car models, and more; all of which have mostly in a way carried forward into future installments.

It’s not surprising to see that Rockstar Games has already begun work on GTA VI. The Grand Theft Auto franchise is considered “permanent” by parent company Take-Two Interactive Software, Inc. (NASDAQ: TTWO). CEO Strauss Zelnick has only ever marked franchises as such which are guaranteed to have new installments in the series. Besides GTA, Take-Two has previously labelled Borderlands, BioShock, Civilization, Red Dead Redemption, and – surprisingly – Evolve as permanent franchises.

GTA V has successfully shipped more than 60 million copies. That has clearly set a tough precedence for Rockstar to follow up. That being said, the developer still has ample time before pushing forth the sixth installment. GTA V, thanks to its GTA Online module, still has much life in itself. Additionally, its modding element has just taken off. It’s amazing to see how new players are still flocking together every month to give the game a try. Rockstar Games really outdid itself with GTA V.