It will definitely hit 1M, but yes we just don’t know when. It can happen in 1 year or 10 years also. Everything depends on the demand raised by the people to accumulate the coin. Few years back no one thought Bitcoins will cross 1000$, but currently Bitcoins have become the most valuable digital asset. So we just need to keep calm and show faith in the coin. Just accumulate and hold it for few years. Definitely you will see the profits.
Not just about the demand but also depends on the government regulation and I think it will be hard for Bitcoin to reach that level if the government still not accepting it as a legal tender.