Canadian hour-long dramas going extinct?

Shockingly there only seem to be about a dozen Canadian scripted hour-long dramas right now which are not mini-series. Those are time travel therapy drama Being Erica which was recently renewed for a fourth and final season for 2011-2012, serial killer drama Durham County (not yet renewed for 2011-2012), police drama Flashpoint (Already renewed for 2011-2012), horse drama Heartland (Already renewed for 2011-2012),private investigator drama Republic of Doyle (Already renewed for 2011-2012) summer hit Rookie Blue (already renewed), period police drama Murdoch Mysteries (new season premieres March 16, 2011), psychic drama The Listener (not yet renewed for next season), co-productions with Syfy Haven and Sanctuary which are already renewed, Since September there have only been three new hour-long dramas (excluding miniseries): Lost Girl, Shattered and Blackstone of which only Lost Girl was successful and is already renewed for a second season the other two while not officially cancelled are not expected to return.
Upcoming premieres this Spring seem to only include Showcase's Endgame (March 16) and XIII (April) With Amy Price-Francis's King originally announced for Spring but still pending a premiere date.
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