NavCanada has a ANS service improvements project underway to upgrade some of the aging Air Navigation Systems equipment.
AIC 47/08 and 48/08 outline the schedule for the upgrade of the DME and ILS equipment. One thing to note, is that the new ILS equipment will not provide back-course capabilities. Therefore ILS procedures involving the localizer back-course will be replaced with an RNAV approach instead.
As always, you can check out the AICs at the NavCanada website.
I also also thinking of implementing a service whereby you can “subscribe” for for AIC updates. You can get e-mail updates or subscribe to a RSS feed. Anyone here have any interest in such a service? If there is enough, then I might just whip something together.