I would guess since they're announcing it now that it will be a spring or early summer release but a fall '24 release wouldn't surprise me either.Im probably going to be wrong...but hear me out:
I wouldnt be surprised this is either a day 1 shadow drop or a short time window to release. GTA is one of those games that it markets itself at this point...they do not need to drag out the hype anymore then it is. With some of the recent releases and big flops in the past years, they will probably do themselves a disservice if the release date is a whiles away. To some extent....its not going to live up to the hype anyway...if that hype drags on for another year plus, then it will only get review bombed more.
But then again Rockstars announcement to release history says otherwise.