At the same time we shouldn't be building Highway 404 to serve Keswick, we shouldn't be building commuter rail there either. Keswick shouldn't be a growth area. Full stop. There's lots that I could say about Keswick that isn't very nice, but I won't say it here.
At the same time, Highway 404 north of Newmarket wasn't just built to serve Keswick as much as it was to serve cottage country and other traffic headed to and from the northeast. But the MTO is very much misguided in building a new freeway, especially beyond the new terminus at Woodbine and Ravenshoe. Highway 48 and Highway 12 are very annoying to drive and overburdened with traffic, but they're two-lane highways. Four-laning Highway 12 around Beaverton, and improving Highway 48 is the most logical solution, instead of extending Highway 404 all the way into Brock Township. But this is the same MTO that won't simply widen Highway 7 between Kitchener and Guelph, but instead opts to built a new freeway around it instead.