So for starters, you will still have a legally-enforceable document if you move.
That being said, CA is one of the chief offenders of having weird property laws that may cause some very unintended consequences if your documents are not updated to plan around.
I always advise my clients that if they move, it’s a consultation fee well spent for a local E&T attorney in their new state to give a once-over to their documents. And if that new attorney is like me, they won’t urge costly updates unless there is a real need.