Quick, Tiny, Mini-Theory

We have two newcomers this season: Ceasar and Ilana. Ilana turned out to play a crucial role in explaining how Sayid came to be on the plane (obviously). Ben was busy escorting Sun and Jack to the church with Mrs. Hawkins. So, can we expect to see Ceasar play an active role in the fate of Aaron, explaining Kate's attitude. Or what about Hurley? P.S. This is not really a theory at all. But, oh, well.