I believe council directed staff to look at a westerly extension recently. We will probably get a fresh look at the possiblity of the extension soon, the first one since the early 2000's when the TTC actually had an EA done for a Sherway extension. Extending the subway to Sherway would be a "quick" project in terms of subways, and would probably be relatively cheap. might be desirable, and I have a feeling it would be fairly busy. You probably wouldn't have to tunnel it at all other than under the 427.