some edited pics who show the interchange look once the A-410 extension to Lennoxville will be done http://forum.skyscraperpage.com/showthread.php?t=119197&page=76 (http://forum.skyscraperpage.com/showthread.php?t=119197&page=76)
As Stephane posted elsewhere, the A-410 interchange with University Blvd. has now opened. Link is in French only: http://www.cyberpresse.ca/la-tribune/sherbrooke/201009/07/01-4313195-le-pont-de-la-410-est-ouvert.php
Seems that the extension hasn't added any distance to the route yet, just converted the end from a signal to an interchange.