Well with Searchlights simulation new AC4400CW coming out eventually we could use new route to support this engine just some food for thought!
Theres the shuswap revelstoke - kamloops , golden to lethbridge, lethnridge to Eastport idaho . as stated above the heron bay sub & northshore, red deer sub in alberta the thompson & fraser canyons
CP Rail could be great, but there needs to be more than an ES44 of AC4400. Maybe a GP35, SD40-2, or SW1500 and a VIA P40DC or F40PH could be included. The route needs both pasenger and freight equipment.
Not that I wouldn't enjoy another CP route, but we already have quite a bit of "Mountain" routes. I've been pushing for a midwest route for quite a while.