That would mean that is it is true ZCash mining is quite something of the past, because the market will be flooded by this new big hashrate coming from FPGA farms.
I think, none is providing FPGA to public yet. Zcash-Miner.com seems to have slashed their solve rate cost due to FPGA performance increase.
This is even worst if it isn't released to the public, as people will not know about it and the great farms will be making a lot of money because that will have a little impact on the network, but enough to alter it in the bad way for small home miners.