User blog comment:Zathronas/Speculative author, Volume 3: Pyrrha Nykos/@comment-25258408-20141126222106/@comment-24218038-20141127002859

I believe that Cinder's plot include eliminating the most troublesome student if she can.

It's not absolutely necessary but it would help.

Expect more of Arkos in volume 3.

I don't have much for Ren at this time because there's too much going on in volume 3 for much development on his part but if I'm right he'll get much more in Season 2.