If you are waiting for "the last hope", you probably have wondered who is the fourth cat of the new prophecy: "The end of the stars draws near. Three must become four, to challenge the darkness that lasts forever."
I have a theory I want you to concider for a heartbeat: could this cat be Mousefur?
Before throwing your computer from the window, remember "the forgotten warrior", even Jayfeather wonders it as he had good reasons:
-she is an elder (an expeirience cat)
-but mostly because: she said to Jayeather that she senses the end of the clans because her dreams had been troubled for some times by darkness.
What do you think about it? An elder in the prophecy? To change a little bit? (if you haven't remarked, only younger cats seems included in prophecies.)