no it wont happen
the max btc can reach by that time is 30000 and it will not last long before it drops
Yes, you are right, it could be fake news spread by scammers so we should be careful and not get trapped, I think instead of trusting news we should make our own research. No doubt bitcoin has the ability to increase highly in price faster as it has potential but till now price of bitcoin was highest in 2017 which was $25k so this time it can be a maximum of $30k but hard to see it 50k after that I would leave all on luck.
Maybe only halving which can help bitcoin to $50k. And it still possibility and not fixed to happen. And about $50,000 according the title which said that in Dec 2020, will have very small possibility to happen. In speculation thread like this, anything we can say possibly to happen because there are nobody who know what actually happen in future and almost all only make their own speculation.