Goofy Movie 3.

Its 10 years or so after Extremely Goofy Movie. Max is married and has a toddler. Gets a big trip award from work or something, but doesn't have a sitter for the kid. Reluctant to trust his dad since his wife's family isnt available, Goofy convinces Max its ok. Max and wife go on the trip, Goofy get into shenanigans at home with the kid (Kid escapes house, roams around a mall, ends up teaching a yoga class, mistaken for a high-profile kid of a celebrity and gets a bunch of paparazzi, etc) All the while Goofy is chasing down the kid, in full Goofy mode. Prevents all disasters from happened, several close calls, all the while responding to Max's calls and texts insisting everything is fine, fiddling with new technology, because if he doesn't he'll never be trusted to watch his grandkid again.

Nothing groundbreaking, real simply story, full Goofy shenanigans. Give it a really catch soundtrack. The full Goofy Movie trilogy would be

The Goofy Movie
The Extremely Goofy Movie
The Grand Goofy Movie (ya know, since he is a grandpa now)

Bring back Powerline from the first movie. It'd be an easy movie to do that'll make a good amount of money. Full nostalgia, no real agenda.