The solution to the problem is a vaccine, so two years of international border closures is realistic at this point along with a deep and long global recession. The effects of which will be felt in about 3 months.
In the absence of a vaccine and unless the virus is eradicated by stopping it's transmission, we'll be back to the days when no-one went on overseas holidays.
Your previous predictions of Australia’s outbreak being worse than Europe and the US, and the complete worldwide closure of all borders for a month didn’t even come close to fruition, so Nostradamus you are not.
While a vaccine may never be found, what is as important is the further progression of effective treatments, and considering the time, money and effort spent researching those at the moment and how far they’ve already come in only 3 or 4 months, I feel they will be the key to things improving going forward.