Guardians of the Galaxy Vol. 3's post-credits scenes provide hints about the future of the team in the MCU. 

The first post-credits scene focuses on Rocket's new team, as he becomes the new captain of Marvel's cosmic team. 

Rocket and the new Guardians are shown working together to make the galaxy a safer place. 

The presence of the High Evolutionary, who is alive and imprisoned on Knowhere, suggests a potential future interaction between the character and Rocket. 

One possibility is that the High Evolutionary could be revealed as a Kang variant or choose to support the villain(s) in ruling the multiverse, leading to a confrontation with Rocket's team and Earth's Mightiest Heroes in Avengers: The Kang Dynasty. 

Another way the two characters could meet is if Rocket seeks out the High Evolutionary's intelligence and expertise on Knowhere to find a solution to save the multiverse from Kang or defeat another future villain. 

This scenario would bring their relationship full circle, with the High Evolutionary now imprisoned after the events of Guardians of the Galaxy Vol. 3. 

The interaction between Rocket and the High Evolutionary could have significant implications for the fate of the multiverse and the Guardians' role in future MCU storylines. 

These post-credits scenes set up potential story arcs and conflicts that could be explored in future Marvel films. 

Fans are left speculating about the specific direction of Rocket's storyline and his encounters with the High Evolutionary in upcoming MCU projects.