The "new normal" maybe looks more like what's happening now in places like Oz: a case is detected; contacts traced and quarantined; if necessary a workplace, aged care facility, whatever is locked down and extensively tested. With good tracing and quarantining, doesn't have to rise to the level of locking down a region, just individual cluster locations.
Of course you need to get community transmission down to low levels for this to work, and the test & trace operation has to move very quickly. It basically involves treating the thing like eg ebola, SARS, MERS or whatever.
So latest example: household contact from a cluster in Melbourne missed by tracing crosses closed border into Queensland under a dispensation for seasonal fruit pickers. There he develops symptoms, gets tested and comes up positive. Emergency declared in Queensland: tracers go to work; several dozen contacts from planes, buses, family, workplace quarantined and undergoing testing; pop-up testing facility backed up by extensive public info campaign established in the town where he went to work. So far all negative. I guess if widespread community transmission was found in the town, it would be locked down, but that doesn't seem very likely at the moment.
A major effort, like you would make for ebola etc, possible because this guy was the only local transmission case (ie not a quarantined international arrival) detected in the last few days.
