Pretty Little Liars showrunner Marlene King has been hard at work on Season 4, and she’s been keeping fans updated on her progress as she plots and pens (alright... types) all of the upcoming season’s drama. Here’s the latest Season 4 glimpse Marlene has shared:
 
In response to a fan question about whether there would be any new series regulars in Season 4, Marlene tweeted: “Lots of new characters in 4. A few that you have been wanting to meet for a while.” As if there weren’t already too many characters (or, as we lovingly refer to them, suspects) to worry about with a killer loose in Rosewood!
 
We are especially intrigued by the few we have been “wanting to meet for a while.” Perhaps one of the characters Marlene is referring to is Toby’s mother, who we already know will be in the Season 4 premiere. Other possibilities include a more formal introduction to Ali’s twin, who is named Courtney in the books. Could she be the girl in the Red Coat?
 
Season 4 starts filming in only a few weeks, so we may not have too long to find out. In the meantime, we are still seriously focused on Season 3. Is Toby really dead, or is there more to the story? How long will Spence be locked up in Radley? And what is so mind-blowing about the explosive Season 3 finale? We must know!

Who do you want to see in Season 4? Let us know in the comments below!

Catch the next episode of Pretty Little Liars on Tuesday, March 5, 2013 at 8 p.m. ET/PT on ABC Family.