After daily reading of this forum, following the developing process & releases of other games with it's sometimes negative comments of players which are very similar to some on this forum, I came up to one basic concept:
Generally, it is always the same process before and shortly after a new release of a update or an environment:
1. A new update/environment is announced, mostly with a certain date (Here I have to say that the game developers usually don't mention an exact release date, because things might change or some unexpected issues come up, so they tend to say that the release will be in a certain period of time, e.g. ''Q1 2015" )
2. The release date is postponed and the community is splitted into two sections:
a) The impatient community, who immediately complain of the postponement
b) The patient community, who don't care about the postponement and don't feel any ''negative emotions''. They keep calm because they know that unexpected things might come up and the release must be postponed to ensure that the player have fun playing when the update is released
3. The game developers may feel under pressure due to the impatient community and as a consequence, they rush things.
=> The end result: An unfinished release date version which contains plenty of bugs, not working features or as now, not working servers
To sum up the behaviour of some people:
On the one hand, the most people would like to have the update released as early as possible. On the other hand, people would like to have a completely bug free release date version.
Doing pressure but at the same time demanding an entirely perfect product, is a bit contradictory, isn't it?
Additional aspects to updates, bugs etc. :
1) Games will be never bug free!
I know, this phrase has been mentioned so often so far, that you probably can't see it anymore, but it is a matter of fact that games will be never bug free. We have to live with that. This is compareable to human beings: We will be never perfect, we can only improve ourselves but we will never be able to reach the level of perfection. As your parents or grand parents teached you ''If we would be perfect, we would be robots"
1.1) Especially betas will be never bug free!
We are actually in the Open Beta of the third update and instead of accepting that the purpose of betas will be always to test something and find as many bugs as possible, people start complaining again.
2) Game developers have to set priorities!
A decision might be ''Shall we either try (I used intentionally the word ''try''. Explaination in the next aspect!) to fix the bug or shall we rather publish new content/features?" Each job of the world will always contain hard decisions and one side will be always ''disadvantaged''.
3) There is no guarantee that a bug will be ever fixed!
In the previous aspect, I used the word ''try'' , because there is no guarantee that a bug will be ever fixed. Some bugs are such complicated that it is very difficult to say ''Show me the bug, I'll fix it''. So shall the game developers spend endless time to fix one or several bugs, even if they aren't sure that the bug will be ever fixed, or shall they rather focus on new content? There is no ''one solution'', as I said in the previous aspect.
4) Their decisions have deeper reasons than you might think!
As I mentioned in the previous points, the decisions of the game developers always have deep reasons which we - the players - might don't realize in the first place. So please don't immediately start complaining when for example one bug wasn't fixed in the last update.
There are probably thousands of more things we have to consider, but I personally regard these as the most important
We can be sure that the game developers think about each step in their developing phase very carefully because they all aim for one goal: To satisfy the community

I can understand you guys... You are eagerly waiting for the new update, because you know, that this update will definitely improve the game and increase the fun factor and then you read ''I am sorry, but due to several things we have to postpone the release of the update". I feel like you at this moment. Huge disappointment, discontentment, frustation comes up.
But we have to overcome our bad emotions and understand the situation of the game developers, as I've wrote this little text before I began to write this topic:
My intention of this topic is, that hopefully all players will finally comprehend the difficult situation of the game developers now and keep calm & patient and don't do pressure to the developers anymore.Why? It's easy to answer: If we let the developers do their things and don't put the heat on Nadeo, they are able to polish their release version as much as possible. Who would benefit? We! Because then we are able to enjoy the at least 90% bug free release version.
By the way, I don't use any direct source when I say in this topic ''People always complain'' because if you would use a quote of one certain guy, people would start blaming on him and I don't want that.
And notice this: Please please please don't regard this is as any personal attack, I just would like to clarify the situation.
Thanks for reading this long text

Greetings,
Soprah