If you get more women and more minorities so that the Parliament looks more like Canada, that actually expands participation as well.
As you know, I started off with the two provisions, which really would both expand representation, one of which is electoral reform towards a mixed-member proportional system, which many other countries have now moved towards. It retains the virtues of first past the post and the constituency service, but mixes it with a proportional outcome. The second is legal gender quotas, which have been implemented in a hundred countries around world. Canada always used to be very positive in terms of female representation, but it has lagged behind. It's had fits and starts.
Both of those legal changes would be good, but you couldn't implement them by the 2019 election.