When Tarion's monopoly ends, what happens to the accumulated "equity"?

Now that Kathleen Wynne has announced that the Liberals will be out after this election, many are musing about what is going to happen to Tarion's monopoly given the Cunningham report and promises made by the other parties. Ending Tarion's monopoly will result in many decisions, including what will happen to its accumulated "equity". The meme above summarizes CPBH's position.