Pixar Post - T.J. wrote: I wouldn't go as far as saying it reconfirms Jack-Jack is a major character. Jackson has been repeating a similar version of that same quote for quite some time now (three years in fact) and each time he ends on the Jack-Jack note. So, no, I just think he uses it as an easy answer for the question.
I remember him doing this the day after the sequel got confirmed, but I wonder what he's trying to pull with the Jack-Jack quote anyways? (it's also the reasoning why the Jack-Jack rumors became popular during those 3 years with all the fan-theory rumors).
Granted he's the same exact guy who still thinks that his Star Wars character Mace Windu "survived" his death at the hands of the Emperor in Revenge of the Sith (and we all clearly saw him die on-screen either from the fall or getting hit by flying cars along the way, it reminds me of the Syndrome death at the end of the first Incredibles where he got his cape sucked into his own plane's engines and we all saw that happen).
Sorry about the off-topic post referencing Star Wars, just that both Mace's death and Syndrome's deaths are kind of vague (both clearly died, but some fan sources states that they survived for some reason (I can see Syndrome possibly surviving (which would explain his Facebook profile pic getting updated), but not Mace.)