To preface, this is a pretty minor thing to make a blog about, so if the admins want to remove it, that's fine.
Second one shows a pair of new characters having a discussion.
Third one shows a bloody Clementine (I assume after this) outside of a house (which I presume to be this). Additionally, Telltale's tweet announced the reveal of more Season 2 news tomorrow at 12pm PST / 3pm EST on their site. I'm guessing it's going to be a launch trailer with a release date.