We will all survive this.
I don't want to trivialize grief that is as real as any bereavement. You must take this seriously. For many of us, this was like hearing a good friend had three months to live, and today that friend finally died.
Although I am the first to shout, "have faith, the City will be reborn!" let us assume for a moment that I am wrong. (That so seldom happens, y'know.)
You will find some other diversion. (I'm buying X-Com.) The grief will occcasionally hit you like a punch to the gut, but it will happen less and less, until you eventually wonder what the fuss was about, how you could be excited about punching buttons in sequence to activate your attack chain, or going through that same cave segment over and over again.
More importantly, if you were an RPer like me, and sometimes even if you weren't, you became a little more like the person you pretended to be. All unknowing, you cultivated and practiced traits that you admire, that you consider "heroic," which is the first step at least to becoming more "heroic" yourself.
And you now know what it might be like, to live in such a world as Paragon City, which is the first step at least to making such a city into reality.
Forgive me, I'm a mystic sometimes. Whatever our future, I do not regret the time or money I invested in Paragon City, and despite the shoddy ending, I remain profoundly grateful.
(Now let's get back to bashing NCSoft. Seriously, F___ NCSoft sideways with a ___!)