The Government of Canada will never let this happen.

The new Ottawa Civic Hospital, auxiliary buildings and condos on the Sir John Carling site and Queen Juliana Park. (Drawing is from Reimagine Ottawa|Facebook.)

     "Parks Canada's Rideau Canal Management Plan serves as a key land use planning document for lands situated in the immediate vicinity of the Rideau Canal National Historic Site i.e. CEF lands abutting Dow's Lake and the Rideau Canal."
     "In particular, back shore land use and development is expected to protect open space and ensure compatible activities with the historic character of the Canal."
     "Views to the Canal from the Arboretum and from other lands east of Prince of Wales Drive are also to be protected." (Central Experimental Farm National Historic Site Management Plan (7 of 20) Government of Canada and Agriculture and Agri-Food Canada.)
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A recent traffic study
Baseline Road Merivale to Prince of Wales - Number of vehicle travel lanes - 4 - Peak Directional Volume -(veh/h) 2,000.
Carling Avenue - Highway 417 to Booth. Number of vehicle travel lanes - 6. Peak Directional Volume -(veh/h) 2,000.
Merivale Road Clyde to Baseline - Number of travel lanes - 6 - Peak Directional Volume - (veh/hr) - 900.
(more)

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A real estate corporation is planning to build housing on former CEF land:
     "The subject property faces east toward fields of the Central Experimental Farm that were originally part of the Booth Farm but integrated into the experimental farm in 1928. For many years the field was known as Field #3." (Cultural Impact Study - City of Ottawa - 1110 Fisher Avenue, date 2019.)

Field #3, Experimental Farm Ottawa.