There are some things that are not necessarily directed to women, but recommendations have been made generally on increasing the replacement rate. CPP provides only 25% of income.
That's a generalized thing, but for women specifically, one of the recommendations I've heard put forward, by Monica Townson and others, is to build on the child-rearing dropout formula for allowing the system to kind of compensate for time that was spent outside the labour force, or with very low earnings, raising children, and to look at expanding that for other kinds of care-giving. If you have, say, a disabled relative that you need to care for over a period of time, some of that could be dropped out as well. Or if you have a child with a disability, even when they reach school age they require more care, and that sort of thing.
So that's one idea.