No, Wikileaks is not gone, it’s still there; but from now it will loose the support it enjoyed from the media outlets and proper journalism community. It feels like it never really appreciated that. By releasing unredacted cables, it has made extremely difficult (if not impossible) for people to defend their actions.
With many newspapers behind him, Assange was able to ward off the major criticism from even many of his supporters; documents were being read by the many News Organizations, things that were too dangerous to be released were being withheld; a reasonable precaution everyone agreed. Such precautions kept many names secret, made sure that peoples lives were not endangered, it protected Wikileaks from claims of hampering National Security and all that most importantly provided wikileaks some credibility, more support.
Wikileaks did what will change the world forever or viewing of history forever. Although no govt. fell because of it no radical change came. In Pakistan, release of such documents just validated what people already knew about the leaders, but no one expected resignations, no one seriously demanded them and no one gave any; not even explanations. American govt. accused it to be playing in the hands of enemies and many in Arab countries cried these documents to be planted by America it self (e.g. Iran on the quotes about it by heads of Gulf countries)
It did changed of what we viewed as “Confidential” and raised the question what governments should declare confidential and what they should not. It strengthened that people who are not directly working in the Journalist organisations can work with them to present ground-breaking news. Wikileaks was blogging getting bigger and reaching a milestone, a natural evolution of what everyone thought WWW will be; a place people can tell what darker things have hidden. And once it was there, there was no hiding, it will reach hundreds and thousands of people, becoming part of history.
Question is do we need everything “Open”; many will agree no, no one wants to all the memos written by every boss at every time circling web, no we don’t want names of sexually abused people on the internet, we want to disclose information about the informants; not because we favor one party or other, because that information can be used to hurt those people; track them and their family down, prosecute them, it can start a witch hunt.
Bigger problem is recent action by Wikileaks destroys the bond it shared with other organizations, they were his shield, they were his backers (even if they did not explicitly stated that), he has lost the partners now. With loss of his partners he will loose his voice and impact factor. Just data cannot make news, you need people of credible repute to connect dotes, make story from fragments of information, make big picture, verify and clarify. Those people will be more hard to be found.