I can't speak to whether there are plans to change the interest rate for the Canada student loans program. I can tell you that for Canada student loan debt, the debt has actually remained relatively constant at roughly $12,400 for those who graduate. It's absolutely true that in addition to that, many students have other debts from provincial programs as well as non-government sponsored loans, but for Canada student loan debt, the amount has actually remained quite constant because of the introduction of grants.
On November 15th, 2016. See this statement in context.