I think that the sanctions are benefiting the Liberals and that ending the sanctions will help the Liberals more only if it looks like Trump was defeated rather than surrendered to.
The Liberals looked like the bad guys against the Freedom Convoy because it was the Freedom Convoy that flew the Canadian flag; now the Liberals can fly the Canadian flag against the external threat of America. Economic hardship for Canadians can now be blamed on that external threat instead of focusing on the Liberals' record of managing Canadian tax dollars.
The Conservatives can see that they are losing support to the Liberals at the polls and not to the more conservative Peoples Party of Canada (Like Erin O'Toole lost support to the PPC, for being virtually indistinguishable from the Liberal Party, in the previous election). This is causing Pierre Polievre to echo Liberal talking points (Poilievre says he is not a 'MAGA guy,' and is 'Canada first'
https://www.cbc.ca/player/play/video/9.6671043), which makes him look more like a follower than a leader.