User blog comment:Zathronas/Analysis by an author - episode 10 Battle of Beacon/@comment-25405817-20160202032751/@comment-24218038-20160202034316

As an author of fiction myself, I can tell you with reasonable certainty that "K" and "I" designs are ready. They're in trouble if they don't have a general concept done at the very least.

As to why Flynt and Neon are back, who said they left? Every contestant that were in the tournament were still at Beacon and they represent the best their school has to offer. Who wouldn't want them in the fight?

I believe that having teams from every schools present at Beacon will be important for the future volumes of RWBY. They all will be anchors for viewers when our two favorite teams starts to travel across Remnant. That's why we have this tournament so early in the story. It introduce us to actual people from Atlas, Vacuo and Mystral.