That stadium will never get built without public money. Not that Bronfman couldn't do it by himself but because the 21st century business model of professional sports ownership is all about getting the taxpayers to build stadiums for free.
Why did the Atlanta Braves and Texas Rangers get the taxpayers to build them new ballparks when their existing ballparks were barely more than 20-25 years old? Because pro sports ownership in the 21st century is about the real estate, not the team. In both cases, the owners aren't just getting new ballparks, they are getting entire new neighborhoods full of lucrative, overpriced condos and retail space in addition to the ballparks. The condos are where the real money is, as Geoff Molson could tell you. That's why he bulldozed that area next to the Bell Centre which was honoring the greats of the past as well as all those bricks bought by fans so that he could put up another tower. Stevie Bronfman too, is looking not just at a ballpark but also the entire Peel Basin area as a development opportunity. Devimco actually has two proposals for the area; one with a new ballpark and one without. He's going to develop that land one way or the other. The only question is how much money he's going to steal from the taxpayers along the way.
But make no mistake. Without the public footing the bill on a new stadium, the stadium ain't getting built and the Rays ain't coming, even on a part-time basis. There simply is no scenario in which Montreal gets the Expos back without the taxpayers taking it up the a$$.