Supporters of those charged in relation to police raids in the Urewera Ranges have failed to convince the Solicitor-General to throw out the entire case.
Eighteen people face an assortment of firearms charges stemming from the October 2007 raids.
Fifteen were to go on trial at the High Court in Auckland on Monday.
But on Wednesday they learned the case will not be heard until probably February next year, while the Supreme Court considers two other cases taken by the defendants.
These relate to the admissability of some evidence and whether the trial should be heard with or without a jury.
Lawyer Moana Jackson was one of two lawyers who petitioned Solicitor-General David Collins, QC, in April to throw out the entire case.
However, Mr Jackson says that request has been declined.