I believe that Yukon has publicly disclosed their analysis. The Northwest Territories undertook an extensive engagement process with its residents to talk about the likely impact of pricing and different design options, both for pricing and for revenue use and, as I say, is now very close to finalizing a design. I can't speak for what their plans are, or when they plan to disclose them. Of course, that's consistent with the normal development of any policy.
On May 1st, 2018. See this statement in context.