Former Maori Party member Annette Sykes was likely to stand for Mana next year, and former Mana candidate Jordan Winiata was also "in the mix".
Mr Harawira confirmed his intentions in flamboyant style, saying everyone had been missing the MANA sound so the band was getting back together.
"Annette will be lead singer, we'll have Jordan on bass, I'll play lead guitar, and I'll get Kereama and the Ratana Boys on percussion. John Minto's a little rhythmically challenged, so we might get him to head up the roadie crew," he said.
"I've jammed with Te Ururoa [Flavell, Maori Party co-leader] before and that went real well, so you never know. And if he wants to play lead that's fine with me. It's the music that matters. But we won't be playing too many new tracks when we hit the road.
"It'll be a Greatest Hits tour, with all the songs that people know and love when they come to a MANA gig - The Treaty Rocks, Tax the Rich to Free the Poor, Housing for the Homeless, Feed the Kids, Jobs for All, No to Deep Sea Oil - all the tracks that MANA's taken into the Top 10."