Wild theory - Could Jane be Lilly?
Ever since I first saw Jane, I sensed a rather vivid Lilly-ish aura about her. And just before it is brought up, some could argue that she looks younger than Lilly, which is quite understandable, since she does, but it could just be the new model making it appear so. She also has a different voice actress, but in her monotone she does have a spark of Lilly... Right? Well, just to get that out there. In the end this IS just wishful thinking, I suppose.
Now, think about it, how Jane was apparently was found outside covered in dirt and such. No matter how things end up with Lilly in Season 1, she seems to reach a relatively fitting conclusion. As implied by Kenny, she would not get very far with the RV, which would leave her just as defenseless as she would be if you just left her behind. In any case, she is on her own in the wilderness for years, during which the events of the rest of the Season 1 plus what has happened up until now took place. Survival happens. She cuts her hair short, covers herself in guts, lives.
"Jane" came into existence. Some would now wonder why did she take on an alias when she was found by Carver's men. You and me both. But is it not peculiar - Her name is actually never really mentioned by the characters, only in "they will remember that" notes (correct me on that if I am wrong, I might have forgotten a crucial instance). This could mean that Troy knew her real name. Maybe, just maybe, this motivated her to use Troy as bait rather than have him join their escape, as her identity being revealed could create unnecessary drama.
Also, "They're all going to die, Clementine. Don't let them pull you down with them.". While it can be assumed that she caught Clementine's name upon earlier eavesdropping, she does quite quickly grow comfortable with talking to Clementine on first name basis. Could it be that she already knew Clementine's name?
Speaking of names again... The name "Jane" could actually come from the female version of "John Doe" - "Jane Doe", a famous placeholder name for an individual whose true identity is unknown or classified. Telltale has left clever little hints like that in the past, so it would make sense, right?
Wishful thinking, I know. But let us consider that it ACTUALLY WAS what happened. Would it not open even more promising new potential for her character?
[EDIT] It appears that I overestimated the intelligence of the forum community once again, the title alone causing people to lose themselves to derisive nature, my actual points of analysis disregarded and ignored. Oh well. Well it IS a wild theory after all.