A few things with respect to some basic spatial considerations:
> The Jays currently have *two* "temporary" stadiums, both of which they have played regular season MLB games in -- and to which they made tens of millions of dollars-worth of upgrades to facilitate -- within the last ±2 years.
> Square footage of extant facilities:
- Lamport Stadium: ±170K
- BMO Field: ±260K
- Rogers Centre: ±460K
The Rogers Centre is BIG. Massive. Even if you assume that a brand new stadium would be smaller (as is the trend for some of the newer ballparks), you need a LOT of space for it (to say nothing of space for pedestrian circulation/gathering/events, etc.). By way of comparison, the square footage of newer, now much-beloved MLB ballparks:
- Petco Park (San Diego): ±400K
- Oracle Park (San Francisco): ±422K
- Target Field (Minneapolis): ±440K
- Camden Yards (Baltimore): ±460K
- PNC Park (Pittsburgh): ±480K
- T-Mobile Park (Seattle): ±600K
Here's what the RC footprint looks like (very roughly) overlaid on the largest surface parking lots at Exhibition Place:
If you're going to build a new, permanent baseball stadium on the Ex grounds, you're probably going to have to look at tearing down some existing buildings to the west of BMO (some of which are very nice, and at least a few of which, I would imagine, are listed if not designated). I really hope they never put a stadium at Downsview, for a whole bunch of reasons, and there's some Federally-owned land in the Portlands that could be interesting (but that seems like a reach for a number of reasons), so to my eye, it's basically down to three options: 1) Tear down and erect a new stadium in its place, while the team plays in one or both of Buffalo or Dunedin for 2-3 seasons; 2) Undertake a more substantial renovation of the existing building than the one that will occur over the next two off-seasons (which would probably require moving the team to the US for 1 or maybe 2 seasons, at which point they'd probably just opt to tear it down anyway given the lost revenue associated with playing in NY or FL); or 3) Get creative in working with the City about basically reimagining much of the Ex Grounds west of BMO.
With the latter option, I think you're probably only putting it one of two places:
In lieu of the space currently occupied by roads, surface parking, and (awkward timing, but them's the breaks) the QE Theatre (which is a beautiful building):
Or, in lieu of the space currently occupied by the bandshell, the rose garden, and the Better Living Centre:
Again, baseball stadiums are very big, and very expensive.