The proposed change raises the inclusion rate on capital gains above a threshold, and it targets secondary properties, rental units, cottages and investment real estate, not the house a family lives in. A downsizer selling a long-time Saskatoon home typically owes no capital gains tax on that sale at all, under a Principal Residence Exemption that has existed for over 50 years, long before this proposal.
Where the proposal does matter is if you also own a second property, a lake place or a rental unit, since that sale could face a higher inclusion rate if the change goes through. Confirm your specific situation with an accountant before you list, because the answer depends on which property you are selling and how you have used it.
Joel Dyck coordinates with your accountant and lawyer so the tax picture is settled before an offer arrives, not after. Get your hand-reviewed valuation from Joel Dyck.