Gravity falls part 2

So maybe what happens now is that Dipper, Mabel, and Grunkle Stan are hunting for the forth book to send all these weird creatures home but by doing Grunkle Stan may turn himself young again to help Dipper and Mabel. also what I heard It's 6 years after the Big battle between Dipper vs Gideon so by then Dipper may look like any of these three but with training by Grunkle Stan

And Grunkle Stan looking like this:

Who knows what will Happen.