I would say there maybe a dozen exchanges popping up to replace the cryptopia void.
Yobit and Tradetoshi are ready to roll,multi-base-coin, but are fraud scam DON'T trade there.
My eyes vision is still the .gif below.
A confederation of exchanges, that create some LIQUID OTC means of inter-trade.
Thus the books and depths are inter-mingled.
Bid on EXCHANGE A but the order is filled by EXCHANGE G.
The red box.
Both a kind of clearing house.
And a kind of blockchain status reporting feed.
I would like to get a multiple of exchanges to list the same cateloge of coins.
Deposit/Withdraw are handled independently from customers to exchange provider of choice.
But a liquid or lightening network unites all the exchanges for a deeper matchpool.

thread linked
here is in the process of dressing a tentative list of all trustless crosschain exchanges