$5-7T if the current pace of mass adoption will be kept. I think Binance will be getting more licenses in different jurisdictions which will enable people get in crypto easier.
Now that many local exchanges have reached out to newcomers, I don't think Binance will play a significant role in boosting market capitalization. And I don't understand which adoption you are talking about, in fact mass adoption has not reached 50% of financial services worldwide (not including banking).
Likewise with new projects, although with big ambitions, they have not been fully implemented in the real world as written in their WP.