May never reach that number because mid-way surely the world's bureaucracy and regulation will prevent it by taking 20-30% tax from every applicable transaction. Bitcoin will continue to face rules about this, but I do not mind this if in the end bitcoin is only up to 500,000 usd
It is possible that bitcoin can even reach that value many years from now. The world bureaucracy will not stop bitcoin from growing its value but instead a countries adoption of bitcoin will bring an intense increase in bitcoins value due to the increase of users demand. There are even some experts who predicted that bitcoins value can reach that high.