User blog comment:Knarrow02/Do you think Phineas and Ferb deserve a 5th Season?/@comment-26221290-20150419131104

Yes I do. I have doubt that it will happen though since I heard that the last episode in Season 4 will be called "Last Day of Summer", which kind of implies that it is the last episode. Also, if it does go to next year's summer in the next  season, there would be a change of plot since in Doof 101, Doofenshmirtz became a high school teacher and in Act Your Age, Carl says he thought Doof gave up his evil ways.