It's not gonna be this game. I would love that choice too, but 'eh. They said we would see some of the characters we know and it's suppose to follow the comic book, not the show.
It's a brand new character and storyline following that character (also, it's before Rick wakes up form his coma).
I think it'll be really good! And the screen shots look awesome as well, 3D images of the comic artwork and they look badass.
Look! it's Glenn!!
The main character you play and a little girl. She's suppose to stay by his side and actually be a good help, instead of hindering?
It just looks awesome...