Okay, so. An offical AU I am calling the Needleheart AU.
Needletail survives sacrificing herself for Violetpaw, but is gravely injured. Violetpaw goes to get Alderheart and Twigpaw. Together they find a very wounded Needletail and bring her to safety in Thunderclan. No one is sure she will make it, but Alderheart is attentive and she makes a full recovery. While this happens, the clans fights Darktail and win. Shadowclan returns to their territory and Shyclan stay with Thunderclan for the time being. By this time, Needtail has accepted the way she feels about Alderheart and knows he feels the same.
Twigpaw, Violetpaw and her have a heart to