I also saw the annoucement about the new edition. That dosen't change my interest in a refund, I still want the promised refund.
So far, it seems that the Linux version will still be a long ways coming, and may release after the Windows and Mac again, with the earlier talk of Linux development being halted (not wanting to merge multiple branches). Because of these, I still want a refund, and I will wait and see if the promised Linux support is delivered.
Until then, it seems like another promise that may not be delivered, especially since the DX11 renerer was talked about at length, but nothing about updates to Linux, such as fixing your middleware issues.