The Prime Minister says he would probably support a euthanasia law change of the type Lecretia Seales wanted.
Ms Seales died on Friday morning, shortly after learning that a judge ruled her doctor could not help her end her life without risk of prosecution.
Her campaign and trial re-ignited calls for a national debate on the right to die for terminally-ill people.
John Key said this morning MPs would have to treat any proposed euthanasia law as "a conscience issue" but it was inevitable the topic would re-emerge in Parliament.