All the information we have about Arc Six
- It will be another lake arc, taking place after Bramblestar's Storm.- We'll see the kits of Sedgewhisker, Dawnpelt, Snowbird, Petalfur, and Squirrelflight in the arc.
- It's still in the very early planning stages. Squirrelflight's kits don't even have names yet. (That was mentioned on November 11, 2014, so they may have names by now.)
- Vicky will not be involved with the story. (The last main series book she worked on was Tallstar's Revenge.)
- We're getting Super Edition 9 before we get Arc Six. (I don't have an exact link, but Kate said back in one of her first question answering sessions in the summer that Cherith was currently working on Super Edition 9, which would be released in 2016. Since Arc Six is in the planning stages, we're getting it after Super Edition 9.)
- Spottedleaf isn't going to come back. Having your spirit destroyed is final.
- We may be getting an albino cat, since Erica said she liked the idea of one.
- Erica also mentioned that they haven't decided if any characters from outside of ThunderClan will get POVs yet.
- The first book will almost certainly be released in 2016. We'll probably get it in the fall, since it's coming after a Super Edition (usually the Warriors summer book), but we may see Super Edition 9 in the spring and Arc Six #1 in the summer.
- Squirrelflight and Bramblestar's kits will likely be major characters in the arc. At the very least, expect one of them to be a POV character and the others to be featured heavily in the story. They could all be POV characters, though.
- It's been rumoured that Featherfall (who appears in Bramblestar's Storm as Crowfeather's apprentice in a single scene) will be the main villain of the arc. She may be some kind of conqueror similar to Brokenstar and Kuvira.
- It's also rumoured that Hawkfrost has a rogue son named Diego, who will be appearing.
Basically, we don't have much info on it, but more is sure to come. It'll definitely be interesting to see what happens in this arc, especially after how unique Dawn of the Clans and Bramblestar's Storm have managed to be.