Given current plans, here's my fantasy map for Stage 3.
Stage 1/2 ION
Laurer-Waterloo Park station decomissioned.
Infill stations at McCormick, University Ave (to intersect with University line/develop UW South lots/UWP), Perimeter Institute (Barrelyards), Agnes (filling the gap between GRH and Central), Highway 401 (built in conjunction with GO/Greyhound Park and Ride). Politically, Stage 2 needs to happen before Stage 3, despite Stage 3 likely being more viable.
iXpress
Routes largely unchanged. 201 and 202 iXpress routes end at UW terminal. New bus-only road is built through Conestoga College campus, and crosses the Grand River on a new bridge required for the 8/401 flyover on the South side of the 401.
University ION
Built as an extension from Conestoga Mall to the Boardwalk like the preliminary plan. Intersects with Stage 1 ION at University Ave. Station spacing is tighter in the University/Northdale district to serve development.
GO Stations
Additional stations built in Baden (at Nafziger Rd), Kitchener West (South of the Boardwalk), and Baden (Greenhouse Rd). Hourly all-day, two-way service to Toronto with additional bi-directional peak trains.
Grand Trunk RER
Runs between New Hamburg and Guelph along the Double-Tracked, GO owned, Electrified Guelph Subdivision. Runs every 15 minutes between Ira Needles and Region of Waterloo International Airport. Potential extensions to New Hamburg and Guelph (could feasibly be run as a GO service). Connects with ION service at Kitchener West GO and Central Station.
Stage 1/2 ION
Laurer-Waterloo Park station decomissioned.
Infill stations at McCormick, University Ave (to intersect with University line/develop UW South lots/UWP), Perimeter Institute (Barrelyards), Agnes (filling the gap between GRH and Central), Highway 401 (built in conjunction with GO/Greyhound Park and Ride). Politically, Stage 2 needs to happen before Stage 3, despite Stage 3 likely being more viable.
iXpress
Routes largely unchanged. 201 and 202 iXpress routes end at UW terminal. New bus-only road is built through Conestoga College campus, and crosses the Grand River on a new bridge required for the 8/401 flyover on the South side of the 401.
University ION
Built as an extension from Conestoga Mall to the Boardwalk like the preliminary plan. Intersects with Stage 1 ION at University Ave. Station spacing is tighter in the University/Northdale district to serve development.
GO Stations
Additional stations built in Baden (at Nafziger Rd), Kitchener West (South of the Boardwalk), and Baden (Greenhouse Rd). Hourly all-day, two-way service to Toronto with additional bi-directional peak trains.
Grand Trunk RER
Runs between New Hamburg and Guelph along the Double-Tracked, GO owned, Electrified Guelph Subdivision. Runs every 15 minutes between Ira Needles and Region of Waterloo International Airport. Potential extensions to New Hamburg and Guelph (could feasibly be run as a GO service). Connects with ION service at Kitchener West GO and Central Station.