Question: Evelyn in this movie immediately struck me as looking exactly like Roxanne from Megamind. Seriously, look at each character. Is there some sort of hidden connection between them? Or is this purely coincidence that Evelyn and Roxanne look like twin sisters? Or... possibly Roxanne being a descendant of Megamind considering Incredibles 2 is set in the past.
Answer: It seems to just be a coincidence, or more likely the limitations of the 3D animation style used. Of course, in real life there are unrelated people who look-alike. However, it's unlikely the characters are suppose to be related since "Megamind" was created by DreamWorks, which is a subsidiary of Universal, which is a division of NBCUniversal (formed by the merger of GE's NBC and Vivendi Universal). Since 2011, NBCUniversal has been controlled by Comcast until they owned it outright in 2013. "The Incredibles" films were created by Pixar, which is a subsidiary of Walt Disney Studios, which is owned by The Walt Disney Company. Plus, I don't think there's been any significant individual who worked with both animation studios who would have influence on the character development and hundreds of people are involved in the animation processes.
Question: Did they not already know that Jack-Jack had powers after what happened with Syndrome?
Answer: What happened to Syndrome happened high in the air, Elastigirl mentions she can't see whats going on and panics. They never actually see what Jack-Jack is doing and think Syndrome is hurting him.
Question: Why did it take 14 years for this sequel to happen?
Answer: The writer and director, Brad Bird, wanted to wait until he came up with a story that he deemed worthy of telling. This wait would ultimately take fourteen years.
Answer: Brad Bird also caused problems at Pixar while making the first Incredibles. It was the most difficult film for them to make up to that point and Bird's uncompromising approach caused a bit of animosity.
Question: Where does the family live now? Did Winston let them stay in his house forever because he isn't using it?
Answer: The movie doesn't give an answer, since it doesn't really matter in the context of the story. But in all likelihood, the family will continue to reside in the mansion, at least for the time being. Winston loves the Supers, so he'd probably be more than happy to let them stay there.
Question: The theatrical release of this movie had a live-action prologue where Brad Bird, Craig T. Nelson, Holly Hunter, and Samuel L. Jackson thanked us for being patient for 14 years, and telling us to enjoy the movie. Was this clip ever released outside of theaters? If so, where can I find it?
Answer: I've only seen the movie once in theaters, but I've viewed both DVD and Blu Ray openings on YouTube and didn't see it included, but you can find it if you search "the incredibles 2 theater opening." If it has or ever does air on TV, I don't think you'd see it there.
Answer: I think the fact that Evelyn from Incredibles 2 and Roxanne from Megamind bear some similarities is purely coincidental. The idea that there may be a hidden connection between the two is unlikely and the idea of them being related is even more unlikely. It should be noted that Incredibles 2 is a Pixar production, and Megamind is a Dreamworks production, so the two aren't even made by the same company. Perhaps, her design was inspired by some features of Roxanne, but the idea of the two being connected or related is pretty doubtful.
Casual Person