From the ESHC last update, this pretty much covers everything.
the ESHC has accumulated significant, and very sensitive, data related to, among other things, the debtors' geology, mineralogy, mining, milling, marketing and financial operations. Experts have been employed in each of these areas, and the experts are researching the data. Furthermore, these experts are conducting their own independent testing and research. This process has been, and continues to be, very involved and very time consuming. The objective of this process--all this data collecting and research--is to produce a preliminary feasibility study, and ultimately, a definitive feasibility study that will aid the ESHC in obtaining funding commitments.
The bottom line is that the ESHC has been investigating the current status and future potential of the Milford project at a level of detail and planning that has never been done. Ultimately, the ESHC's mission is to determine how much is it going to cost to get the project in operation, and how profitable will the company be moving forward