If all the features that dollar have right now, and bitcoin has it all also, then bitcoin will really replace dollar. It is a strong currency and I think it will took a very strong force to take it down. But now, I love to see bitcoin like this, who knows, if it replace dollar, then the next thing that will happen is the centralization, which is against the real idea of bitcoin.
And because of Trump's leadership still its early to say that also because the impact of Trump's presidency is a good significance that dollar is becoming stronger.
That's why it is going to be hard for bitcoin to replace dollar but it would be easy for dollar to make bitcoins disappear because value of bitcoin is depending to dollar.