Zero fees? Nah I don't really see that happening. Maybe exchanges will agree to cut their fees by, let's say, half, but to make it a zero fees? That's not going to happen. What you have to know is that these fees are like a source of income for exchanges and they need the money to be able to continue their operation. If they stop the fees and start charging zero for their services, then I wonder where they will get the money to pay their workers and maintain their sites, pay engineers and all that. So they are not going to agree with such an idea.

But the truth is that, whatever you're looking for here , you will always find it. If you need zero fees, since poloniex is offering that, then you should go for it and leave other exchanges. Or if it need fees that is moderate, with better services and security, then there are also those that offer that.