Voluntary CPP Contributions

Q136: By the end of 2016, will the Canadian federal government pass a law allowing voluntary CPP contributions?
Yes: 25%
(A law that turned some current mandatory contributions into voluntary ones would count, as would one that allowed "CPP-like" voluntary contributions.  The law must be a substantial change in the CPP program, not just a minor tweak.)

Finance Minister Joe Oliver has recently suggested the idea of allowing voluntary contributions to the CPP (see article here).  There does not seem to be a detailed proposal, and it seems that details may be worked out in the process of consultations over the summer.  Given the time frame, it is likely that any changes would take place after the federal election.

Presumably, voluntary CPP contributions are most likely if the Conservatives win the next election, which I said has a 50% chance of happening in my last projection.  Even then, it is quite possible that the Conservatives will drop the plan, or be unable to proceed with it (in a minority government situation).  Thus, a 25% estimate is reasonable.