According to these sources, Rockstar is actively developing remastered versions of Grand Theft Auto III, Grand Theft Auto Vice City, and Grand Theft Auto San Andreas. All three of these games are being remastered using Unreal Engine and will be a mix of “new and old graphics.” One source who claims to have seen a snippet of the games in action said that the visuals reminded them of a heavily-modded version of a classic GTA title. The UI for the games are being updated too, but will retain the same classic style. No details were shared about gameplay, but Kotaku has been told these remastered titles are trying to stay true to the PS2-era GTA games as much as possible.
Originally, it seemed that these remakes were going to be packaged together and given to players who purchased the upcoming next-gen ports of GTA V and GTA Online as a sort of bonus or "thank you gift" from Rockstar. Then plans changed, and the remastered trilogy was scheduled to be released earlier this year. However, plans have changed again, and now the remastered titles are planned to launch around late October or early November for PS4, PS5, Xbox One, Xbox Series X/S, Switch, PC, Stadia, and mobile phones.