The timing of the debate comes as the Government negotiates a boost of 300 pokies at SkyCity casino in return for it building a convention centre. Gambling is also occupying Parliament's commerce select committee, which is preparing to release a report into private member's legislation to reduce gambling harm.
Problem Gambling Foundation national health manager Tony Milne said a sinking-lid policy would stop licences to run pokies being transferred from bars and clubs which closed.
"The most powerful submissions come from people who have experienced the harm from pokie machines with accounts of lives ... torn apart by pokie machines."
Family First director Bob McCoskrie released a poll last week showing huge support for cuts to pokies in the city's poorest areas.
Those polled reflected voting percentages in the 2011 election but showed a broad support for cuts to pokies in the city's poorest areas.
Community Gaming Association director Brian Corbett, spokesman for the pokie trust lobby, said a sinking lid did not work and would actually damage communities which needed help.
"By removing gaming machines from supposedly low-decile areas, if you take the view funding should be returned to the communities where it is spent, then they are the ones who will suffer most."