If Hinata had joined Nekoma instead of Karasuno, the story would have taken a different turn. Hinata's playing style and energy would have added a new dynamic to Nekoma's team. His quick attacks and jumping ability could have complemented Nekoma's defensive strategy, creating a well-rounded team. Additionally, Hinata's interactions with the Nekoma players, especially with Kenma, would have been interesting to see. The rivalry between Nekoma and Karasuno would have played out differently, with Hinata facing his former teammates as opponents on the court. Overall, Hinata's presence in Nekoma would have definitely altered the dynamics and outcomes of matches in the story.