City Council ordered a functional study of the Stephen Avenue and Eau Claire portions of the downtown metro at
their meeting on 06 November 2007. That study is expected to come back to City Council this time next year with enough engineering and design in place to put Line 201 underneath Stephen Avenue and to run the downtown portion of Line 203 under Second Street SW from Eau Claire to a turn onto Tenth Avenue SW before coming up for air at about Macleod Trail. They might look
into running stacked tunnels for the 201 and 202, but I wouldn't bet the air money on it--the city's stated preference at this point is to build a separate tunnel under Seventh Avenue at some indeterminate date in the future to accommodate the 202.
The city's general manager of transportation told City Council that the C-Train system would need to build the Stephen Avenue Metro and the Eau Claire Metro by 2017 to maintain service levels on the 201 and to build the 203. This construction
is the next item on the city's C-Train agenda after the completion of 202 West, but it won't come cheap. Bottom line--it'll come, but probably a touch later than anyone would like.