Snowkit, Amberkit, Dewkit

My speculation:

Snowkit is the "leader" of these three. He's really much like Cloudtail. He is probably the one that will get these sweethearts into troubles. Even though he seems to be rude and bossy, he's loyal and cares for his Clan, especially for Amberkit and Dewkit.

Amberkit is a little chubby and it's easy to trick her. You could think by the first impression she's Ferncloudish cat who'll have kits, but she doesn't plan on having a mate. She just wants to protect ThunderClan and be the best warriors she can be, and that's it.

Dewkit right here is Ravenpawish at first. He doesn't want to get into trouble, but because of his fastness he is one of the best hunters. Even when he won't never be one of the best fighters, he'll get his confidence and fights and hunts for his Clan till the end. Proudly so.