Yeah there are new decentralized exchanges been created to compete with Bitshares and that's normal and even healthy if the industry has to grow.

However Bitshares still maintain it position as the number one decentralized crypto exchange in the world because of its many other features that other decentralized exchanges might not able to induce into their system. Graphene blockchain on top which Bitshares is built is one of Bitshares advantages over competitors

And yes Bittrex i think was trying to delist Bitshares due to the block size it occpied on their server but i think Bitshares team are talking it out with the exchange.

Thanks for reading and dropping your thoughts