Overall, I think the main story line of Season 2 will be Falme. I don't think they'll include Tear and Callandor until Season 3.
It's the next big event in the books. I think that having five locations (Fal Dara, Tar Valon, Caemlyn and Falme and something in the Waste) will push the budget for the season.
Having Falme and Tear, two big events, might be too much for one season. I'm pretty sure it will be included in general because they already gave us a glimpse of Tear in Episode 106's cold open and I can't see Rafe teasing us with just that glimpse and not letting us see the whole thing later.