Know understand your calculation or the basis to your prediction. And to your questions

1. Depends if there are sellers and the true number of lost Bitcoins.
If everybody is hypothetically willing to sell and there's no lost Bitcoins then yes
But in real life it won't be possible due to reasons I just mentioned
And also the price would be more expensive as the demand exceeds supply.

2. Bitcoin price isn't Bitcoins protocol. Bitcoin protocol is decentralized in nature and few people owning Bitcoin wouldn't directly change that. '