Pretty Little Liars: TV Line's 'Ask Ausiello'

No word yet on whether Aria is carrying her own little one, but get this: “Ezra will find out that he has a son” in an upcoming episode, which provides “a nice family moment between him, Aria and [his child] Malcolm,” shares exec producer I. Marlene King. Of course, Ezra won’t immediately discover how long Aria kept this secret form him — but the truth will eventually come out. Still, when all is said and done, “the ‘Ezria’ story will end in a very interesting place this year,” adds King. “It’s kind of a full-circle moment.” 

As for Alison, Marlene King plans to use Season 4 to explore why anyone would even care who killed someone like her - “I'd like to go back to some of the moments where we realize why the girls were attracted to Alison,” King notes — “because she wasn’t pure evil and it does seem like [she is] in Season 3. We’re now seeing her darker, mean girl side. But there’s definitely a flashback coming up on Season 3B where we see a more vulnerable side of Alison.”