Basically, this:I guess they still might go the route "share night Warrior power between more vessels" they foreshadowed earlier. The missing cinematic might show us Elune spreading Night Warrior power among her followers, resulting in Tyrande not being torn apart by this immense force. I would not jump into conclusions until we actually see what happens in the cinematic.
Sure, if Elune just cleanse Tyrande, that would be not that logical to include these customizations to PC, but who knows if logic and common sense would stop Blizz from adding it to increase their sales.