Ancestry.ca and FamilySearch International made an announcement on Nov 11th that they will partner on the digitized and indexing of the Canadian census.
The press release says that the "joint initiative will allow the organizations to improve online access to a comprehensive collection of Canadian censuses".
As apart of the agreement, FamilySearch.org will provide images and index to Ancestry.ca for censuses 1861, 1871, 1881, and 1916, and Ancestry.ca will provide images and index to FamilySearch.org for the 1851, 1891, 1901, and 1906 Census.
Notice that nowhere is the Library and Archives Canada (LAC) mentioned. The LAC originally held the census records on microfilm (being transferred to them by StatsCan), but through agreements with Ancestry.ca and FamilySearch.org, they seemed to have lost control over them in how they are used.
And it looks like the "free" search on FamilySearch.org is about to come to an end. The press release says that the images "will be free to all qualified (those people who have done transcription work for FamilySearch.org) FamilySearch members and at all FamilySearch family history centers".