Realized I had a couple other things to address:
First of all, @COJimmyV, don't worry: both of your points have already been addressed in my newest chapter and there's going to be more about them coming up. Good catch, though.
Second, I will not be writing a chapter from someone else's perspective. I'm aware that would add some variety but, at this point, I'm a little hesitant about changing up the POV, especially with all the development the characters have already had. I might do a standalone piece at some point from one of the other characters' perspectives but the main POV is gonna stay Jack, mainly because I'm a guy and I understand how guys think. Trust me, if I pretended to know how girls think internally, I'd be squashed. Call it limited ability but the whole shift in perspective thing just doesn't seem within my capacity at this point, not like with nivek_88 (who introduced it early enough).
Third, I'm gonna have to make a poster at some point with all these crazy ideas. Zombie Walburn, Walrus Tara...we'll see what else pops up as the chapters continue.