I know they haven't announced anything officially, and it may never happen (they just have approval) but was surprised to see QUESTRADE also planning to offer it.

Quote from the G&M aritcle:
Today Wealthsimple is allowed to offer a limited form of betting. Who knows what it will be allowed to do tomorrow? Hot on the heels of Wealthsimple, Questrade has said it wants to enter the market as well.

(https://www.theglobeandmail.com/business/commentary/article-we-must-stop-the-scourge-of-prediction-market-gambling-coming-to/ )

→ sounds like this is fact as the Globe does their research!