User blog comment:Dragonknight86/Phineas and Ferb on Hiatus after Season 4 ends/@comment-961279-20140216002444

Before anybody freaks out about this, remember that P&F will be around for many years to come in one form or another. To give you an example, the last episode of Kim Possible was broadcast on September 7, 2007, yet the Kim Possible World Showcase Adventure at Epcot in Walt Disney World opened in January 2009. It takes at least a year to design and build an attraction like this.

If Disney had wanted to abandon Kim Possible, they would have halted work on the Showcase Adventure before the design phase was completed. Instead, the Showcase Adventure design was finished, it was constructed, and it ran for 2.25 years before Disney began converting it to become the Agent P World Showcase Adventure. Episodes continued to run on Disney Channel for quite a while, even after they ran the "Every Possible Episode" marathon.

And if anyone is going to try and bring up that "65 episode rule" where Disney stops programs at a pre-determined number, it no longer applies. P&F has about double that, and TV shows are no longer syndicated in 13 week blocks of 5 episodes per week. See 65th Episode Rule as to why it no longer is used.