I've heard an epidemiologist say that if a vaccine becomes available in 18 months it'll be a record.
Experimental treatments are being researched, but with only very small numbers of patients. It'll take quite some time for those treatments to become widely available.
It's unlikely that we're going to even begin to see things return to normal in a month or even three of isolation, especially if that isolation isn't as effectively and universally enforced as in China.
Afterwards there has to be extremely aggressive testing, tracking, and monitoring, or the outbreak has a very good chance of starting all over again.
In addition, the health care system itself has to have time to recover and replenish its equipment, ICU capacity, and healthy and able medical personnel.