I'm not sure the posting in EDGAR suggests that the FS will be released June 2017. I think the references to June in the report are due to June being used as the end of the fiscal year.
If it is the case that the FS is delayed to June 2017, NioCorp should inform shareholders and IR shouldn't ignore questions related to the guidance of the FS release date.
Here is the excerpt from the report.
"As of December 16, 2016, the Company’s current planned operational needs are approximately $4.2 million through June 2017. This estimate reflects the cash proceeds the Company received from the exercise of warrants that expired on November 10, 2016. Burn rate now averages to approximately $675k per month, with approximately $355k per month until June 30, 2017 for planned exploration expenditures related to the completion of the Project feasibility study, Project permitting efforts, third party consultants, and other activities related to advancing the Project, and approximately $325k per month for administrative purposes in support of these efforts and for general working capital needs. We currently have sufficient cash on hand to meet these planned expenditures for approximately the next two to three months (January 2016 – February 2017)."