Some Grand Theft Auto fans believe that the trailer for the Grand Theft Auto: The Trilogy - The Definitive Edition may hold a reveal date for GTA 6.
During the scene where Tommy Vercetti is on a bike, his license plate has the Vice City tag with the letters ‘ICSLV’. Some fans think that ‘ICS’ means ‘(I)s (C)oming (S)oon’ and LV represents 55 in roman numerals. So the theory is that GTA 6 will be revealed 55 days after the trailer was dropped, that is on December 16.
The specific date that has previously been claimed by some leakers. Will it be the date? It's hard to tell. There is no reason for Rockstar Games and Take-Two Interactive to rush out the reveal for the next game after the remasters drop.