As I travel to CPH from YYZ at least twice a year (I just returned from CPH via FRA Nov 27), this is VERY good news indeed! Bravo, Air Canada. Hopefully, no more connecting through FRA or CDG! I could never understand just why AC dropped YYZ-CPH completely, as every time I flew this route, the loads were full. If it was a seasonal load factor, they could have reduced as opposed to withdrawing completely. Plus, CPH is the SAS gateway to Scandinavia and Russia, and AC is a Star Alliance partner, so, to me, it makes sense this route is re-opened.
The equipment will most likely remain a B767-200 or 300 series, I would think.