KE will be flying the 77W on the YYZ route effective March 29. This means the route will be served with the fully flat the Prestige Sleeper seat as oppose to the angled-flat Prestige Plus. Prestige Sleeper from my experience is far more comfortable than AC's pods.
Unless company forces you to fly exclusively on AC and/or you need the miles really badly, who in the right mind will continue to choose AC's service via YVR over KE's nonstop polar YYZ-ICN? Not to mention KE's meals & crews easily blow AC's out of the water.
Will be interesting if this move will force AC to bring back the nonstop flight.
Oh BTW there is also the Kosmo Suite (F class) onboard KE's 77Ws for those wanting more than a business product and yes, it will be sold on the YYZ flights.