Wouldn't be too surprised if that Reddit joke post ends up being true where they'll delay it to late 2026 and then say it'll be delayed to next gen for 2027 lol.
GTA VI looks mighty impressive with whats shown already and a whole giant map looking like that including all the extra scripts to make everything work with the NPCs, cars, and world might be too good. I could see a downgraded version for the PS5/XBOX X while the actual version is on the PS6,XBOX XX, and PC in 2027.