Many predicts bitcoin will reach 100K, 160K even 200K and more. but no one say what happen then? what happen when reach for example 100K? will be stable, fall to zero, continue with correction or raise more? what is your suggestion 
No one knows what will happen then, but every increase in price means higher demand which should lead to more stability. At some point the price will likely be pretty stable, in the 500k-5 million range, since people will be using it for asset protection, transactions etc.
Either that or it will be nearly worthless. To me, every year that bitcoin survives decreases the likelihood of the "zero" scenario.