R* is in their full on promotional period now for GTA V.
I doubt they will do a Gameplay series videos like they did for L.A. Noire & Max Payne 3.Those games need it because L.A. Noire was using some new facial motion capture software which was an important part to that game.Max Payne 3 they introduced new shooting style and heck that game franchise was close to 10 years old since the last time Max Payne 2 came out on a different console generation.
R* will continue to spoon feed us with info over the next couple of months leading up to the 3rd trailer and announcement of the exact release date.
They have plenty more to reveal and talk about.They haven't discussed multi player yet, the game's soundtrack, and future DLC.
Also expect to see more pre views in gaming magazines and gaming websites.