Hansi Flick must see Gavi as a good player to have in Barcelona's main line-up next season. Romeo, Ilkay Gundogan and Roberto certainly have more experience than Gavi, but in terms of energy I think Gavi is still quite good compared to them. Gavi can sometimes be decisive, it has developed well under Xavi for several seasons.
I agree with you. Gavi is one of the best young players in the world. He was a wonderkid from Spain several years ago. It was very unfortunate when Gavi suffered a long injury which made him miss several important matches. With Gavi's return, I am sure Barcelona will find their best performance again. I can say Gavi will be one of Barcelona's important players next season. I see Gavi has a playing style that is almost the same as Xavi. I'm sure Hansi Flick will include Gavi in the starting XI next season.
If he doesn't suffer a major injury, I think he can have a successful season with Gavi Barcelona. I also like Gavi very much. His playing style makes me think that he will be like a maestro in the future. I think Gavi will be the brains of the team and assume the role of a key player and will achieve this. He is talented enough to achieve significant success in Flick's plans.