I'd like to see those two plots of land in front of the Skydome turned to a mixed-use structure whose main function would be to act as a land-bridge park over the Gardiner expressway. It would allow a wonderful place to relax and view the harbour from (as there are no raised ground areas to permit scenic observation). It would allow people to hike right over the Gardiner, and could be a tourist attraction in it's own right.
Within it would be room for plenty of parking. Massive clubs, theatres, restaurants, retail and mixed uses could all be contained within it's quite large size. It could hold the John Street Pumping Station, basically untouched. Heck, it's so big it could be used to store salt and snowplows as well.
It would give an entertainment complex to a part of Queen's Quay that could use it, and take care of the question of what to do with the empty parking lot on the north side of Queen's Quay. It would give enjoyable and adventuresome access from the water to the skydome and back. It could give amenities to the south side of Bremner in front of the dome. Trees, small plazas, steps, plateaus and pavilions could be atop it. It would preserve the view into the city, and do so in a novel and pleasing way.