Using the "Update Layers" button in the named view dialog box will do the trick, assuming your updated layerstate is set current, but it's also one at a time. Autodesk was VERY short-sighted (as in completely dropped the ball) in the design/workflow aspect of layerstates when dealing with named views . There needs to be a way to apply a layerstate to a group of named views. That entire system needs and overhaul with a lesson in flexibility.
