10Balance between Singe and Multiplayer
Initially, Rockstar wanted more story content for GTA V, but that has changed over time as the online component gathered steam. This means that the GTA had some issues with the plot and a lot of players would just sail through the main and side missions and never played them again. Since GTA is focusing a lot on GTA: Online, the story and character side of things have been pushed aside. What Rockstar needs to do with GTA VI is find the balance between the single player and multiplayer.