Save Bitcoin and hit the jackpot is no longer possible.
You buy from now and you hold till the price hit $1 Million, you only earn 10x from your capital. 10x is nothing if we want to call it a jackpot, probably at least 1,000x multipliers could be called as jackpot.
I'm still waiting for most companies around the world to accept BTC as a payment method. Unfortunately, this probably won't happen.
I think if you wish for most companies to accept Bitcoin payment, it might be possible. Because most companies are profit oriented and they will do many thing as long as it's bring them money.
It's different if you talk about countries, the factors are many and I think it's high unlikely to happen.