Well here's an idea.



After that faithful summer, and many more following it. Dipper followed in Ford's footsteps and became an adventurer and explorer of Supernatural phenomenon, even attending College early and being sent to the school Ford never got to go, along with Pacifica, who went largely because of her family's wealth rather than her own intelligence, she did however hook up with Dipper and would join up with him on his adventures, which she funds with her wealth. As time went on she grew to like adventuring and being more independent from her parents. Mabel had gone her own path. Years later the three of them are called back to Gravity Falls for the funeral of Gruncle Stan, only to find that he has once again run into trouble with the law and faked his death. However, Dipper and Pacifica hop on the trail of a strange event and Mabel joins them for old times sake.