One of four things will happen to Grealish next season, which will define his career:
HE GETS STRONGER PHYSICALLY DUE TO INCREASED GAME WORKLOAD, AND MATURES FROM THE EXPERIENCE: Becomes an established Premier League winger, and actually gets proper shin pads.
HE GETS STRONGER PHYSICALLY DUE TO INCREASED GAME WORKLOAD, BUT FAILS TO MATURE: Clubs will want him for his skill, yet will be put off by his personality and lack of maturity. A technically weaker Gazza, if you will.
HE GETS INJURY-STRICKEN DUE TO THE CHAMPIONSHIP: He will probably fail to reach the same level of skill he was before, and will become yet another wonderkid who failed to promise and is now sitting down in the lower leagues, wondering what happened to their life.
HE LEAVES THE CLUB: One particular forum called VillaTalk is going to be annoyed.