The Fourth Apprentice by Erin Hunter IS coming out in November and I cant wait.
Romances
Lionblaze-Icepaw
Berrynose-Poppyfrost

DeathsFirestar,Ashfoot,Leopordstar, Mousefur

Dovekit will be the final power of three cat but I think Ivykit will be important to somehow. Toadkit will be Jayfeather's apprentice and Dovekit will be Lionblazes.

The fourth Aprentice

I found this photo online tell me what you think it represents