BMW wants E53 4.8is customers to upgrade to the new X6 which will come around mid-2008. For "is" replacement they will use the new bi-turbo V8 which will be out next year and will be in X6. So the "is" replacement will not be coming this year. M-package for E70 is the only new product on E70 you will see this year, and I heard its very hot.