If everyone thinks like you and wait for others, then Neltharion will die for sure. Many people just keep waiting some miracle while they should instead work themselves on the realm. Just playing it would help. Waiting won't help anyone. If you all start playing (it's not like it takes so much efforts to do that, game is 100% still enjoyable. There has been lots of World PvP today the realm is still active even with low population) then the others will start joining too.
Just do it, don't wait. Show people it's worth it. I can't do it alone.