It is impossible to know how the wikiLeaks regarding the US strategy during COP 15 will affect the outcome of COP 16. There are certainly more disussions about democratic process and trust.
Not only have the WikiLeaks affected the level of trust, but they have also distracted some delegates from the work at hand. Even during side events, the Q&A session involves more questions from the audience about trust and transparency from the U.S.
Some NGOs are taking advantage of the leaks and using info from the leaks to offer recommendations to the ‘spied on’ country. For example see this article about wikileaks and Saudi Arabia,