...So what happens when it is delayed again and again and again????...
To be fair, I fail to see the relevance of your post. Let me explain.
Noone is denying this game was delayed. Some might even say you are correct in pointing out that it was due to be completed in March.
But as a developer/publisher, constantly badgered about release, release, release you kinda want to give a feel. But those are nothing more than guestimates. I know...I am a software developer and I am constantly asked about the expected completion date of this project or that...truth is...it's not an exact science. Until it's actually finished, you can say, with any degree of certainty, when it will be finished. There is always some bug or feature going to bite you're ass.
Another point about your statement...although you've heard in the past the game is coming...coming...coming...I'll wager you won't find in any of those posts that the game has gone gold?! Am I right?
It's seldom the case that games are delayed when they go gold. Of course there can be a small delay when they go gold, but these, normally, are out of the hands of the publisher...
So I'd say your fears about the game being delayed are, on a scale of 1-10 - 1 being a teensy, weensy bit scared, then I'd say you should be scared about 1.
Alba gu' brath