I agree, there appears to be not much going on concerning the rebuilding of the WTC.
There is however a lot going on.
Much of the work is focused on the remediation and clean up of the hazardous materials in the soil under the site.
This process could continue at least until the end of the year up to 18 months. I work in the environmental industry and have quite a few clients involved on the clean up work as we speak.
I believe that the building developer has setled with most of the insurance companies who indeminified the site for the full insurance policiy limits or close to it, so the funds for the clean up and rebuild should be available.
Also, if you know much about construction projects, I am sure you are aware that nothing gets done on time, especially in NY, so who really knows how long it will be before we see the finished project.