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

This is a Trading world in which Each coins has their appeal and capacity , what bitcoin has may not in other altcoins same us altcoins has but bitcoin has not.
The logic is Volatility will always dictate the future and it's not us, we are only part of the cycle but the totality is that Investing will always be the keypoint to what will be the future of Bitcoin.
and also when Bitcoin Reached 200$ thousand ? Government will accept and use this , that is one thing that i am pretty sire as the value will safe their economy in devastation .