If the China markets continue slide down, then all following like it. But for now China controlled their situation with Coronavirus and that good, we can say that it take some time.
But from another side markets of (America and Europe) they are going down slowly. that it will take about 3-5 months.
67% down maybe it will be continue to Nov. then up to the moon, but if they control situation in the world (Coronavirus and oil prices) it will up to the galaxy.