There was just something about the 3-pronged protagonist feature in GTA V that worked. Obviously, this was a huge selling point for the game, it had never been done before in the Grand Theft Auto universe. The ability to switch between Michael, Franklin and Trevor was very welcome, and it surely didn't take long for each individual player to find their own favourite character. That was notable in V, each playable person provided something different for gamers. In GTA VI, that must be explored again, it's a winning system. Before V released, there were some fears that having a trio of main characters would dilute the relationship players formed with them. That didn't prove to be the case, because Rockstar really managed to blend them all nicely. On various message boards and social media, there are some players claiming that Rockstar should return to having a single main protagonist. Whilst this wouldn't necessarily be a problem, there's room for the multi-character dynamic to breathe a little longer. In VI, it'd be a welcome addition to the feature list.
