The following link takes you to a presentation on a concept brief of Immigration and Ethnocultural Diversity in Canada based on the 2011 National Household Survey (NHS) data set to be released on May 8, 2013.

The NHS replaced the mandatory long form census with a survey whose participation was voluntary. The data on immigration and ethnocultural diversity is the first set of data to be released from the survey. Further information on the NHS and the release schedule can be found at http://www12.statcan.gc.ca/NHS-ENM/index-eng.cfm