"Kung Fu Panda" has the potential to be just as successful as "Shrek". In fact, it's opening weekend was about the same level as the original "Shrek"'s opening weekend when the 2001 number is adjusted for inflation. Chances are, "Panda" will have good enough word of mouth that, when the inevitable sequel is released, it will be much bigger than the first and perhaps on the level of Shrek 2 or Shrek The Third's opening weekends. So, yeah, it's good to see that Dreamworks realizes they've got a good thing going here and that they can make it successful.
With that said...
FIVE???
That's a borderline ridiculous expectation... talk about counting your chickens before they hatch. As mentioned above, "The Incredible Hulk" will take the edge off the grosses of "Panda" for the next two weeks and then there will be a new animated creature in town by the name of "Wall*E". It will all come down to word of mouth, and Katzenberg shouldn't ASSUME that the word of mouth WILL be good enough to make a sequel a profitable venture.