That massive station in Edmonton is connected to a bus terminal, and the structure would be a bit excessive for any location along that part of Eglinton East.
If Kennedy or Don Mills stations were above ground, the design you mentioned would be suitable for them. But they will be underground.
The capacity issue can be solved by short-turning 1/2 of trains at Don Mills, where the tunneled section ends.
Ferrand is too close to Don Mills and shoehorning the tunnel portal between the two stations means that there is no room for tail tracks east of Don Mills, which would make short turning easier to manage. It ought to be eliminated, as should Lebovic and Ionview. Eglinton is intended to be a high capacity, "express" light rail line, not a slower local light rail line like St. Clair.
Quite a few of the Calgary and Edmonton stations have pedestrian bridges. These should be seriously considered at Victoria Park and Warden stations. At a busy station this improves passenger flow during rush hours. Almost all the stations (other than the downtown section in Calgary) have fairly large platforms, not the tiny islands like St. Clair and Spadina. These small islands are fine for a tram line operating in a single vehicle configuration (like St. Clair), but might get overcrowded in rush hour at some of the busier stops on Eglinton.