Yes, research, Kyoki.

You're half right to say that the SCC said that "The Court also ruled no absolute duty for Canada to repatriate a prisoner held aboard." 

They actually said: 

"The appropriate remedy in this case is to declare that K’s Charter rights were violated, leaving it to the government to decide how best to respond in light of current information, its responsibility over foreign affairs, and the Charter." 

The Harper government's decision on how to to that:  nothing. It left him in Guantanamo for another two+ years. 

The important thing about that 2010 case is that it confirmed the federal governments liability in Khadr's damages suit- the most important issue in that case.  The Harper government could have settled in 2006, and should have settled in 2010, but did not, thereby increasing the eventual damages.