My understanding from Articles I have read, Rosie was not kicked off the show. Rosie asked to be released early from her contract. The View did not kick her off.
As for the show, I bet the show tanks without Rosie.
EDIT forgot the Link
http://www.people.com/people/article...040410,00.html
"We had hoped that Rosie would be with us until the end of her contract three weeks from now, but Rosie has informed us that she would like an early leave," Brian Frons, president of ABC Daytime, said in a statement."