I'll try to be optimistic regarding his career. However, this level of arrogance and cockiness is definitely not a good sign.
As I said many times before, I hope he won't get Ballon d'Or this year as that could be harmful for his career in the long run. He has become a star overnight with only 17y of age. It's just not natural. Furthermore, only one big injury could change his career for 180 degrees. He should just look at his friend Fati or Pogba. He needs to stay humble as there is a long way to go if he wants to became a legend of this sport.
Everything is wonderful now but bed times will come, life is not a straight line and if he'll continue to live and act like this, people will turn on him after his first big mistake.