I just got GTA 5 on Xbox One since I sold the 360 version. This game is still a masterpiece! Great graphics, great gameplay (I have not tried online yet), great everything! Best game so far this gen!
What can rockstar do to improve their next game?
-greater draw distance and character on screen count
-have a 7 day calender and world does different things on different days
-more destructable environments
-keep the 1080p 30fps it works well
-more activities such as fishing
-even better folliage
-more random missions
-have a female main character/keep the three character gameplay