Bob, Mark, and Steve left the door wide opened to come back to Kim Possible in the future if Disney would consider renewing the series and if Disney would welcome them back to the show. So now the ball is in Disney's court and of course all the Kim Possible fans FIGHTING FOR A FIVE.
After hearing that Mark and Bob haven't quite closed the Kim Possible chapter in their careers yet, I'm all for the 'Fight for KP'. While I don't think a fifth season would be feasible, with Disney Channel's target audience and whatnot (we all know the finale's ending fell victim to this), another movie or a college spinoff would help give the creators a new set of demographics to work with.
"If they had a king for fools, would you wear the crown?" -- "Take a look at the flower, so fatal, yet beautiful. Showed the bee where to fly and then let it die." -- "The cruelty in our hearts will tear this world apart." -- "Love sounds familiar, but the emotion escapes me."