From www.wdwinfo.com

Phineas and Ferb to end production?
Feb 21, 2014

The future production of the Disney Channel's animated hit, Phineas and Ferb, appears to be uncertain. Steve Hulett, the Animation Guild's business rep, posted a blog stating that Disney is no longer producing the show, citing an anonymous Disney staffer: "Most the Phineas and Ferb board artists are gone. It was a nice, five-year run but the series and the specials have wrapped and people are off to other jobs, looking for other jobs. A few artists are swinging to other Disney shows here, but others not."

After this blog was published, the show's co-creator Jeff "Swampy" Marsh seemed unhappy that this was brought to light and replied via Twitter, saying, "Well, Steve H is an idiot. But, we are taking our first hiatus since 2006 and making plans for what is to follow... Stay tuned!"

Aliki Theofilopoulos, Phineas and Ferb writer and storyboard artist, said on Twitter, "we are on indefinite hiatus. There are enough episodes and specials to fill the air for some time."

It is unclear to what kind of "hiatus" these staffers are referring. Hulett replied on Twitter, saying, "Over the past few months, the Phineas and Ferb crew has told me the show is wrapping up and they've gotten their end dates, that the series doesn't have a pickup or green light for more episodes. And every time I've been over to Disney Sonora, there are more and more of the P&F artists gone from their spaces. And the few left say to me (again) that the show is wrapping."