When will the release of GTA 6
GTA 5 was released in 2013 Since then, Rockstar made Red Dead Redemption 2, which means that most of their development team was busy and was not making the new GTA game.
Rockstar tends to start marketing companies for their games about 1-2 years prior to their release. With that said, GTA 6 is not likely to come out by 2020 or even 2021.
However, those are nothing but predictions. The game may very well be on its way to the market, or indefinitely delayed. Whatever the case may be, the only thing left for us to do is patiently wait for the official statement from the developers.