I haven't heard any buzz about there being demand for either channel. Even their Canadian partner (Wild TV) hasn't even tweeted about those channels coming to Canada yet.
As for when service providers may get access to the channel, you'll have to ask Cowboy Channel, RFD TV or Wild TV, their Canadian partner, since neither RFD or Cowboy Channel have a Canadian website or online presence yet. Both the RFD TV and Cowboy Channel press releases state that they have opted to release in Canada on Shaw Direct satellite only at this time. They may eventually allow other providers have access to the channel later in the year but they do not offer specifics.