The leaders of the SDLP, TUV and Green Party are set to address their annual conferences.
SDLP leader Colum Eastwood is expected to say "division, deadlock and intransigence" at Stormont are eroding faith in the value of public service.
In his speech, Mr Eastwood will say it is "time to get back to work" after a year of the power-sharing institutions being blocked by the DUP over Brexit's Northern Ireland Protocol.