I think TRON is a very popular coin, after BTC' price halving the USD price of TRON will be doubling by the end of 2020.
It is because Justin is spending millions on marketing and shilling campaigns but the coin has to finally deliver some product.
Now the wheel is turning because new people are coming with money and the money is spend on bringing in new people and we have a closed ecosystem.
What if the limit is reached and nobody else is interested in buying TRX? They will have a choice deliver some breakthrough like a mainstream adoption or a deal with a tech giant or face bankruptcy.