Moonkin - new model! It had some problems, now new spec. Core problem: based on moving bar on your UI, not watching around you.
Moonkin bar going away - still has unique spell and dots , fantasy of Druid calling stuff from stars.
Innervate is returning but not for resto. Balance will have it for utility. Stampeding roar limited to feral/guardian. Resto hotw variant.
New Druid talent row - affinity - lets you pick what other role you are good at. Dialing down base abilities that cover other roles. Balance affinity as guardian Druid gets moonkin form for example.