I have a sneaking suspicion that the future of the Dieppe Blvd extension will be almost entirely residential/institutional/parkland. I still think the new anglophone k-12 school will be built there. The roadway appears to be only two lane, and, the multiple roundabouts planned for the extension will be conducive to traffic calming, favouring a residential future.
Perhaps at's it's southernmost point, where Dieppe Blvd will transition to Dover Road you could see some commercial being built, but this still leaves the Melanson Road area as a bit of a commercial/retail desert.........