Ironically, I think Chan may offer the biggest boost to the sports popularity if we measure it by the number of new viewers/fans who will be introduced to the sport. Should he win OGM in the individual event, not only he will be the first Canadian man to do so, thereby, giving a boost to FS in Canada - it would be the potential media frenzy that it could create in China that would get the ISU salivating. As it stands, Japan is by far the most lucrative market for FS whereas the Chinese market is largely unexplored due to the lack of major stars since retirement of S/Z and Lu Chen. S/Z only came out of retirement briefly in 2010 for the Olympics. In actuality, China has been without a major skating star for about 2 Olympic cycles already. Yet, during the same period, China's economic clout has dramatically increased, now ranking as the 2nd largest economy in the world. In a patriarchal society like China, a man's win will always be more highly valued than women's, just like Japan even though no one will openly admit it. Many current Chinese skaters such as Han Yan and Nan Song have openly stated they view Patrick Chan as their idol - not a coincidence when you think about it. With Worlds 2015 set to be in China, the Chinese media will be all over the place reporting Chan's win as the first OGM for a "Chinese" man in Figure Skating. This is typical given when Ang Lee (Taiwan) won the Oscar or Jeremy Lin (USA) became a household name, Chinese media immediately co-opted them as being "Chinese" notwithstanding there needs to be several * besides the use of word Chinese in those situations.
Although a Chan's win will probably boil the blood of many here without a doubt, it may in fact be an outcome the ISU would be too happy to see.