I'd be shocked if they were to ever remove it, you've got ~500m between the two stations which isn't much but when you start looking at the service areas it beings to make a difference. Anyone coming out of the mission area is going to come east along 25th and use the Erlton location but the Victoria park station, due to distance (getting into the 800m + range for the portions of Mission closest to Erlton), lack of connections across the river, and hostile pedestrian environment along Macleod (with no north/south sidewalk on the east side of the road) wouldn't see much use from the area. Once you add in the political pressure from the Stampede to have stations at both ends of the grounds to facilitate event crowds I don't see it ever coming up to be seriously considered.