Okay, this is basically my “what I think would be cool” for the future.
When all is said and done Dipper teams up with the pyramid guy. They are supernatural detectives who also keep things running smoothly in Gravity Falls.
Even though that is their real job they, understandably, don’t get many cases. And the whole Gravity Falls thing is a secret, so Dipper’s income comes from the Mystery Shack.
I’m not sure what happened to Mabel, I’m guessing something sociably important, like a government job, or a designer. Also, Dipper has a ponytail because they are cool and he already has kinda longish hair.
And lastly please ignore that I forgot the pyramid guy’s hat.