Not hardly, the airframes are good to at least 2040. Howver the engines on the -Es are about shot. -R's F-108 engines are still plenty good to go. Some or all -Es could be converted to Rs and even with the addition of some 767 tankers, which is still being fought by the DemoRats and some RINOs, we'd still be short of tankers. Lack of tankers slows deployments, and may impact in theater operations as well, although the actual ops get priority of course, supplying those needs may really impact things elsewhere.