I don't expect your scenarios can be realized . If bitcoin reached to another ATH, people would wait for while before investing because of 2018 drop that we have experienced after 2017 ATH.
indeed it is still quite impossible for the current situation. Such a price might occur if 50% of the world's population uses bitcoin, and that means many countries have legalized bitcoin
Dude if 50% of the world's population regularly used BTC, then anyone holding onto 1 BTC would be super rich!