This Initial Business Case was released a couple years ago.
It included consideration of a station at Beamsville and ~6 daily round-trip trains to Niagara Falls. No track improvements.
So my guess is a new station at Beamsville, finishing Confederation GO, some improvement of Niagara station (more platform space), and 5 to 6 daily round-trip trains to Niagara Falls for a total capital cost of ~$100M.
Worth noting, the last time Ford visited Niagara Falls he spent $24M. So he's shown willingness to make fairly minor announcements there in person.
A $1.5-million provincial commitment will help redevelop the outdated train station in downtown Niagara Falls into a “multi-modal” hub that will become a “one-stop shop” for transportation, says Mayor Jim Diodati.
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