I don't think Binance DEX will make an evolution for decentralized exchanges. Binance adapts so well with crypto trends over last two years, but this time, I don't believe that their DEX will beat others older decentralized exchanges, which mostly operate on Bitshares network.
Binance is trying to be one of the most powerful giant in crypto space. I believe CZ will bring it at the top, same he did with Binance centralized exchange. He has everything, budget, influence in crypto market.