Well, it always possible whatever the price predictions but it depends when it will come true. The value of $1 million seems like writing on the water to me, very impossible to happen even 50 years from now.
Price prediction $1, 000,000
Price of bitcoin now $9,239.60
There is a difficulty reaching 10k and still far to 100k and so far to 500k.
So $1 million price is unreachable and unrealistic as for now.