I think in order to counter the lack of volume and liquidity, that Binance will come up with some sort of a market making structure that 'borrows' liquidity from users on the centralized part of the exchange, and then locks them up in return for Binance tokens or something. It could be the first DEX that actually generates worthwhile volumes. We'll see how it goes.
That's something I haven't thought about myself, but it could end up being a smart marketing gimmick to get people to deposit funds on Binance. It reminds me of the transaction fee mining nonsense that's gaining popularity.
People rush to a bunch of rubbish exchanges to deposit crypto to start wash trading and generate a rubbish exchange token. Centralized exchanges won't ever do something without it being beneficial to their main exchange.
I'm not at all convinced of any decentralized exchange to do well in the coming years, not even this one. People want convenience and instant settling trades, and not trades depending on confirmations and whatnot.