I have a question for you guys: do you have any confirmation of OMEGA update actually reprogramming FPGA via JTAG and not just updating part stored on SPI? Because you don't need JTAG for that and this may be the reason for R4 making decision removing it in first place. So there's still a small hope left.
Maybe, like I said they could have just not answered the mails if they are not going to release anything...