User blog comment:Dragonknight86/Phineas and Ferb on Hiatus after Season 4 ends/@comment-1279469-20140216045240

Ynge the title of this blog post to "Phineas and Ferb on Hiatus after Season 4 ends" cause it has been proven by Swampy and Aliki that it is NOT cancelled.

Plus it looks like judging from Swampy's tweet, they have something planned. Maybe they might reveal it in Comic-Con this year?