Christchurch Mayor Bob Parker says he's relaxed about a potential mayoral challenge from local Labour MP Lianne Dalziel.
Ms Dalziel, who held her Christchurch East seat with an almost 5000 vote majority in Saturday's election, will not rule out another term in Parliament at the 2014 election.
But she won't rule out a bid for the Christchurch mayoralty in 2013 either.
Her decision depends on what happens to the Christchurch East electorate after the upcoming census, with post-quake population changes potentially affecting its future shape.
"What I didn't want to do is end up in a situation where the electorate basically disappeared or was subsumed by other electorates, and I ended up not having a role to play in the recovery of this city, which is what I've stayed on for," she told APNZ.