Those are just the tested ones. Most coins that support BIP65 and JSON-RPC should work.
Ethereum and ERC20 tokens will work in conjunction with the 0x protocol (as well as Ethfinex in the near future)
Do you know if Zcash, Momero and Lisk will be on DEX?
And do not forget about Horizon(HZ) implementing. I remember that was planned in early Blocknet.