I don't want TFP to add child zombies, and they won't, but the reason why I don't want them is uncommon opinion. It's not because I am concerned about the game's rating, nor the poor business decision it would be to have it banned in some countries, nor because I wish to put morality into gaming. (I especially will never use that as an argument against it. By doing so, you justify the decades-long claims that violence is triggered by using media). I don't want them simply because I don't think it could be pulled off well. Some people think it's really creepy when they do it in movies, but to me it always looks poorly done and way too fake.
I'd be happy without the bandits. I think they will take away too much attention from zombies.
I wouldn't mind fishing added, but I'm not interested in any more water threats unless mutant animals becomes more of a thing. Piranha in Arizona? Just something out of place to try to explain. If there is some void to be filled, it can be filled with some special zombie. Make the bloateds float or something.