I would like to see a decentralized exchange that offers a wide array of cryptocurrencies and acts as a direct on/off ramp to fiat.  It can get expensive to buy and sell BTC everytime I want to make a trade into an alt coin and then again to go from the alt coin back to fiat. 

Coinbase offers very few options for this and they charge high fees.  maybe a decentralized exchange would have low or zero fees for this.

If something like this exists or there is an upcoming ICO for this please PM me.