These changes would/will significantly decrease the speed gain on an FPGA vs. a Vega-64 on the Cryptonight algorithms, which is why I (personally) am not investing any of my team's time into cryptonight algorithms.  My goal for September is to have a total of 7 algorithms that can profitably support over 6,000 FPGA's without resorting to any cryptonight or cryptonight variant algorithms.

Profit on 0xBTC is dropping because the coin is dropping; the current set of algorithms being developed for September (if launched today) would generate $12-$20 per FPGA per day, despite the extremely poor market state.