I don't think so. It just a daydream.
How you can expect that Bitcoin is going to replace dollar, are you crazy.?? You can't imagine the platform of dollars and its credibility.
So there is no way to replace dollar by Bitcoin.
Yes it is true in others dream maybe dollars will replace bitcoin even bitcoin will be turn into millions or billion it will no longer replace dollars for sure. The platform of dollars is the most powerful money on earth where this is the central currency of all currencies how come that bitcoin will replace it.
yes there is no doubt that the platform of Dollar is powerful. but in fact it is all because of of the people interest and when people will stop using it it will become useless, and we can see that in future the interest of the people is in online currency and specially in modern world people have already started using bitcoin. and it is expected that in near future most of the people will start using bitcoin instead of USD.