Personally I think its a certainty that someone on there has 50+ million and we are only seeing millions in their address.
Also we cannot see what addresses belong to what person. Personally I always have my coins in more than one address. “Paper wallets” with one address in a “hot wallet”
So there could be one person with 100+ million total across their addresses and exchange.
Do you mean 9-12 months time, or Now. Or do you mean in 6-9 months?
Remember there are a number of us in the southern hemisphere too.