Twenty-seven deaths? There aren't that many characters! The majority must be "redshirts". And I'd hate to see poor little Judith killed off, nor would I like to see Beth or Hershel die. That's the point though, I suppose. There's no impact in killing off redshirts that we're not emotionally invested in....
Killing an infant on television [if they show it] would definately once again put TWD way outside of standard TV fair and is risky in terms of possibly turning people off.