GTA has actually done London before, but it was ages ago. Grand Theft Auto: London, 1969 was a mission pack for Grand Theft Auto, released clear back in 1999. Returning to London and exploring the city with cutting-edge graphics would be an incredible experience.
It will probably be a long wait before Rockstar confirms any of these settings (or a different one altogether), but for now these are all pretty good guesses (or at least wishful thinking). Hopefully we will hear more about GTA 6 soon. Keep checking back with us; you can be sure that when the news on GTA 6’s setting finally hits, you will hear it here first!