I too will avoid AC's new B777s, but because of the 398 (10 abreast) seats in Economy- in addition to the 60 seats in Economy+ and Business. (They also have a two class configuration for the same model, but that one has only 307 (9 abreast) seats in Y)
Apparently they will be used on low-fare high density routes (Montreal - Paris is the first route).
AC will continue to offer their Business Pods on other B777s - I think the change is only for these high density monsters.
You can see both configurations here.
aircanada.com - Our Fleet - Boeing 777-300ER (77W)