The film was supposed to compete with other blockbuster fare such as Star Trek and Transformers 2 but poor reviews of the film based on the leaked version may kill that buzz.
The more important question may be, at least from 20th Century Fox's perspective, is where the leak came from. There is a small caption at the beginning of the video that says 'Rising Sun Pictures' and is dated from last month.
Rising Sun Pictures is an Australian visual effects company that worked on editing the film, and is currently working on the upcoming blockbuster Terminator Salvation. There is no evidence however to support that RSP was involved in the leak.
20th Century Fox has yet to comment publicly on the leak.