I don't think they will spend a lot of time on Dany this season, her role in book 2 is pretty small (only 5 out of 70 chapters). But I am "dying" to see how they will handle her trip through the house of the undying and all the visions she sees...
Plus I hope that Barristan the Bold meets up with her this season, and I REALLY REALLY hope they do not eliminate the character of Belwas the Strong! He is awesome! I did not see him listed in the casting lists which worries me. Still, he doesn't show up until the very last Dany chapter, so they may not have listed him because his role would be pretty small this season. Staying optimistic.