The idea is circulating that politicians need 4 years in power (and opposition) to get more done. All for "our" benefit of course.The rule in political negotiation is NEVER give away something of value without getting something in return.
Given that once the politicians have decided 4 year terms is what they want, the rest will be inevitable. So slow them down a little - start asking for something in return.
Here's two things to add to that list:
1. Voter veto on important legislation.
2. The ability to "vote out" a Minister, particularly a list MP.
Let's remind MPs they were put there to serve us and be accountable to us. A four year term makes them less accountable. We should get something in return.