twilight next book

I think that there should be a fifth twilight book I personally have not gotten enough this series needs a better conclusion what happens with the volturi? How are they finally defeated? And Leah she should imprint on someone she doesn't deserve to be miserable for the rest of her life! And last but not least charlie shouldn't he find out everything not just know the the basics? O.K. so maybe you guys think it don't think it should happen exactly like that but still! please sign if you want stephanie meyer to right another book ( and not midnight sun although she should finish that one) my letter to her will not include any specifics on how the book should be written.