Will Hunters lose Hati's artifact skins after Legion?

I know that we get to keep the artifact appearances but with Beast Mastery hunters its complicated. Apart from the weapon skins that we keep what will happen to the 6 unique Wolf skins that Hati has, will we unlock their appearances or something or will they be lost forever?
Because the dark lightning wolf skin is really cool and can't be obtained from anywhere else.

I didn't find the right solution from the Internet.

References: http://www.mmo-champion.com/threads/2266...ns-after-Legion

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