I finally spoke to someone at Air Canada who was able to give me an answer. Air Canada just issued a directive that unlimited flight pass holders should request a hold on the pass through customer care on the website. The pass will be put on hold until the pass holder requests that it become active again. The hold period will be added to the length of the pass. According to the representative, this will not be done automatically but only upon request. However, I see that YXUFlyboy had his extended until June already. Was that automatic or did you make that request?