"This UI refresh will reportedly include an overhaul to the Start Menu, Action Center and some in-box/bundled Microsoft apps, and they will be an optional chang

"This UI refresh will reportedly include an overhaul to the Start Menu, Action Center and some in-box/bundled Microsoft apps, and they will be an optional change. " Call me cynical but I doubt they will be "optional" for long. At launch perhaps, but Microsoft has tended to transition the "optional" into the "default" then into the "only" version in the past.