Whether the correction is actually completed, you do not know. But I am sure that the market will remain very volatile.
But the fact is that the BTC will at least keep its real value. The BTC is already well known and it is being paid in large parts of the world with BTC. The demand for BTC will not go to zero, Most Altcoins are bought via BTC. Even if it's still a bit down, I'm sure it's a matter of time until the course recovers. So do not panic
I agree with you with the "Market will remain very volatile", correction is a process of correcting something, well expect for more correction oncoming months, because volatility means also it does not end on a certain point so the process will keep on going.