Emma Watson - 001/019 - No more Harry Potter movies?

A terrible news is moving Harry Potter's and Hermione Granger's fans to tears: rumors say that Emma Watson doesn't want to film the last two movies of this series! I'm quite sad. Hermione without Emma is not Hermione... oddly, I would've preferred a change of the main character, as Daniel Radcliffe, in my opinion, is not so corresponding to the character found in the books. (source: Gone Hollywood)

So... how could be new Harry Potter's movie without Emma? I hope she will change her mind :(