Given the complexity and the magnitude of it, I would suggest a royal commission so that it's all-encompassing. It would have to have a robust enough mandate and timeline that it could peel apart the Income Tax Act incompleteness. It could not be partisan, and it would have to combine everybody's view and make something that's good for the 21st century, because it hasn't been updated.
On October 2nd, 2018. See this statement in context.