[osmo]

MLB has mentioned would be open to Olympic being a temporary facility while construction of a new stadium takes place. I don't know if this would be ideal to start back up, but if shovels were in the ground and Montreal just needed to wait two years for construction, I believe MLB would be okay with it. Similar situation with LA Rams playing in the dumpy LA Collusium during construction of their new facility.

MLB in Montreal is viable as not many other options left for markets in the USA.
MLB now is fueled by strong local markets that can generate big-time local TV and sponsorships, being a small scaled region will hamper you big time. Charlotte would be the only large region left that could be viable on that level.