I just spoke with alphacool Deutsche directly on Facebook again. I was informed that the Flatboy was indeed cancelled. I was told it was replaced by the xpx pro u1. The reason given was they were unable to keep the pump operating at such high temperatures.
I spoke with someone from Alphacool through their facebook page and was told that they are looking to release the block at the end of this year. And apparently it won't just be for threadripper.
