User blog comment:Dragonknight86/Phineas and Ferb on Hiatus after Season 4 ends/@comment-1896159-20140225180702

With the Disney upfront happening sometime in March I have a feeling they're stalling until that point in order to announce a bunch of new Phineas episodes. Remember we have a ton of specials coming up this year so perhaps we'll finally start seeing some new episodes again in April.