Some of us have been through this multiple times with multiple games.

The answer is to take your time and not rush through all the content like a lunatic, because when the content is gone - it's gone, son. Nothing left for you to do but go do something else and wait it out, now. If you so called serious MMORPG players were indeed that serious, you really should have figured this out by now, seriously.

I learned there is nothing wrong with being casual, it's better than being grumpy and bored.