The major issue regardless of who is in power in BC is BC First Nations (BCFN) rights and title to their traditional territories and way of life. BC is very unique in Canada as only 5 out of 205 nations have treaties. Hence because of this and numerous SCOC wins for BCFN, they consider their BC traditional territories that each BCFN claim as unceded, unconquered and untreated traditional territories.

The issue for BCFN and which Weaver did reply to Notley and Trudeau is Canada's Constitution Section 35.- 

http://indigenousfoundations.adm.arts.ubc.ca/constitution_act_1982_section_35/

https://en.wikipedia.org/wiki/Section_35_of_the_Constitution_Act,_1982

BCFN have put a letter to regardless of who is in power the following -  BC NDP, BC Greens & BC Liberals respond to First Nations Leadership Council BC Election Questionnaire

http://www.ubcic.bc.ca/fnlc_bcelexn17