It's supposed to run out to Lennoxville. Part of me feels like this is unsatisfying and wants to see it run up to the 610/112 rotary, but I am realistic about the traffic volumes east of Sherbrooke.
Interesting tidbit: Lennoxville is one of the most anglophone places in Québec. I was there last month and after being in "Parlez-vous anglais?" mode for a while, it was like a babel fish had suddenly slipped into my ear in Lennoxville–unsettling, but welcome.
Getting a bit OT, but the part of Quebec west of Gatineau is pretty english as well. I remember stopping at a chipstand in Shawville and was surprised to see that their menu was written in english.
In Ontario, the opposite is sometimes true. There are a few locales in surprising locations, where there is still a predominant french community present. For example, at the Tim Horton's in Welland, on the Niagara Peninsula, south of Toronto, it is common to hear french conversations in the dining room. Penentanguishene on Georgian Bay, north of Toronto also has a sizable french community.