Well since the most important things have already been said, can I make a superficial and odd request? Add a shrug and "I don't know" to Abe's gamespeak. I've always thought that would be cool. Like he does in this pre-release video at 0:33 right after he throws the slig in the meat shredder.
http://www.youtube.com/watch?v=_zh-FcVDMeQ