PJ is portrayed in a significantly more comical fashion in the sequel than he is in the first movie or the show. Is it losing track of one of the characters' narrative purpose? No, it's enhancing it. Because PJ's first line in the movie is winning a game of Misery Poker, we know they haven't lost track at all—but he is portrayed more comically because after the first scene (when he leaves home), he's free to joke.
We see Mickey Mouse and Donald Duck during the song "On the Open Road," and Mickey sings the line "California or bust." In a Freeze-Frame Bonus Mickey can be seen in the crowd during the Powerline concert. Mickey and Donald were simply hitch hiking to get to the concert.
If you want to consider the Goofy movies being in the same canon as Goof Troop, the absence of Peg and Pistol seems to imply that sometime in that time, one of the following happened:
Pete got divorced and PJ got separated from his mom and sister. Pretty dark, guys. What's even worse is that if this explanation is true, someone, somewhere, decided that Pete was fit to have custody of PJ. This suggests shenanigans, general incompetence, or something even worse, such as Peg or PJ not caring if he ended up there.
Or Peg just died. However, since Pete says he won't have to care for any children anymore when PJ leaves for college, if Peg died, chances are Pistol probably did too.
Another explanation: we just don't get a look into Pete's own family life, what with the story focus being focused on Goofy and Max's relationship. The fact Pete now works as a child photographer alongside Goofy does imply he lost his car dealership, however.
In A Goofy Movie, as much of a happy movie as it was, I find myself wondering about the scene where Max makes his big navigator choice. Would Goofy have really driven them right into the median if Max hadn't chosen a direction?
We never see if the security guard at the concert survived crashing into the screen.
Both Max and Bobby have girlfriends by the end of A Goofy Movie, itís implied. Usually people in relationships stop hanging out as much with their single friends. There is a single friend with a horrible home life and no ability to make new friends on his own, who is probably being ignored. Poor, poor PJ.
In the sequel, PJ goes through considerable Character Development after being asked out by Beret Girl... but if PJís confidence, self-esteem, and happiness skyrocketed after Beret Girl asked him out, that must mean he puts a lot of stock in her opinion. What's going to happen to him if she dumps him?