If ZEN wanted to reelease the PEA it would have with a proper caveat explaining that the unit price for their product is based on x% for market A, x% market B, etc.. and that should (in the future) our process provide the purity required for nuclear service an addendum to the PEA would be released outlining this cost benefit.
Currently they are playing their cards close to thier chest and that's that. We can speculate all we want in terms of timing but its all a guess. Not sure what, if any, legal obligation they have to produce said PEA in a timely fashion.