Street updates happen automatically, the last update is shown on the city’s page.
New cities get added to CityStrides via How to help with missing/broken cities/regions. There is no admin_level cutoff, this is a manual process by James.
I see you edited the admin_level on Brunswick Hills Township, do you have a good reason for this besides “I want this place in CityStrides”? If not, then please do not do this and please revert your change. Admin levels have meaning, changing those numbers requires coordination with the local OSM community.