A magazine article quotes George Reeleder, AC director of marketing, that they will be using the same type of lie-flat (with privacy screens) that Virgin Atlantic is using. I'm not sure what the pitch will be, but the article says they will be arranged at an angle to the fuselage.
He also says that in relation to Asian carriers for cabin comfort (I know this discussion has involved mostly Europeans), that "We won't be taking second place to any Asian carrier now or in the future."