I think the restrictions will simply go from being controlled by the national government to being controlled by the individual prefectures. Okinawa has
already announced some of the restrictions that would be in place from October 1st if no emergency or quasi emergency is in place, such as requesting eateries to stop serving alcohol by 7pm and end operations by 8pm (extended an additional hour for places that have received special certification), and I imagine the Kanto prefectures will all do something similar.