Jack's a great character and a great guest interaction, but I can still see some Disney folks getting upset because he's not exactly a "family" oriented character, which was why I'm worried they'd take him away eventually. That, and not many people tend to think Jack Sparrow when they think Disneyland (although, people could argue they think 'pirates' when they think Disneyland) which was why I stated on his longevity at the park.
Personally, from reading this article and how much they made him dull down his act, if they continue to do it to the point where Jack is no longer Jack but a fragment of what he once was, I'd almost rather have them take Jack away. Then again, most of the Jack's I've seen at the park are creative and talented enough to think of very clever ways around their character limitations and keep the spirit of Captain Jack alive.
I guess what I'm trying to say is Long Live Jack Sparrow. He gives a lot of color to the park.
...now if only they'd bring around Barbosa, it would be fun to see the two interact.