As already mentioned, rerouting the TCH via Glenmore Trail would only add a nominal distance but greatly improve travelling through Calgary. There are enough links out there pointing to Sarcee & Glenmore Trails being full freeways between Calgary's eastern & western city limits, so the only project that isn't on the books is an eastern Glenmore Trail extension to TCH 1.
Compliments of the City of Calgary
Graves Bridge Twinning
Glenmore Trail Corridor (Blackfoot Tr to Barlow Tr) - click on
Open House 3 to see some maps
East of Calgary (Compliments of Rocky View MD)
Shepard Area Structure Plan - fast forward to page 80
Compliments of Alberta Transportation
Deerfoot Trail & Blackfoot Trail interchange reconfigerations
West Ring Road Interchanges - includes Stoney Trail SW, Sarcee Tr, and 37 St SW
East Freeway Interchange
There are no links, but you can probably bet there are will utimatly be interchanges at 52 St SE and 68 St SE, the only signals on Glenmore Trail not addressed in the above links.
As for Sarcee Trail?
Here is a study for interchanges at Richmond Rd, 17 Ave SW, and Bow Trail.