I am interested in the new options too but I don't think Bitshares will stand still.
In fact I have recently bought more BTS because I think there is room for multiple DEXs and I am constantly impressed by how strong the Bitshares community is.
A lot of the people I believe in and trust in the Steem community are also big into Bitshares so I will continue to follow developments there.
Also I think associated projects like Peerplays could create a halo effect in terms of attention.