Discussions are occurring in Japan regarding potentially reinstating the 'medium-sized constituency' structure in the country's Lower House elections. While details are not yet finalized, there is growing interest and support among Japanese political circles. The goal of this change is to provide a more representative democracy by ensuring that all regions, regardless of population size, have fair representation.

The issue of electoral reform is a persistent topic in Japan. The country's 'medium-sized constituency' system, which former Lower House elections used, promised more regional equality. However, it was replaced with the current single-seat constituency system, criticized for allowing densely-populated urban areas to dominate representation. If the 'medium-sized constituency' system is reinstated, it could significantly reshape Japan's political landscape.

In the United States and countries within the EU, changing electoral systems is also a highly contentious issue. For instance, the US has faced criticism for the Electoral College system, which some argue gives disproportional weight to less-populated states over densely populated ones. The issue of 'one person, one vote' versus fair regional representation mirrors Japan's current debate.