Currently Binance holds the largest share of Bitshares for centralized exchanges and the volume is rising daily, especially since Binance not only offers spot trading but also futures trading for the asset. It is therefore in the best interest of bitshares if a bridge between Binance dex and the Bitshares DEX was created.. The Binance chain now hosts a lot of tokens from other chains due to the the fact that it is cheap, faster and a more popular destination for traders.
Recently decelerated bitshares was created on the Ethereum chain, but am sure it will not be long before we see bitshares on the Binance chain especially given how Binance is the go to place for Bitshares trading.