'Pretty Little Liars' sends Tyler Blackburn to 'Ravenswood'

caleb-ravenswood-tyler-blackburn-pretty-little-liars.jpgThe first piece of casting news for "Pretty Little Liars" spin-off "Ravenswood" has been announced -- and we aren't sure if the PLL fans are going to be happy about it.

Tyler Blackburn, who plays Caleb Rivers on "Liars," is going to be bidding adieu to Rosewood and heading for Ravenswood come this fall, when the spin-off debuts as part of the annual PLL Halloween special.

Blackburn writes on Twitter, "I am so stoked to head to #Ravenswood - I promise you won't be disapointed!"

So, what does this mean for Haleb fans? Well, there's nothing saying that just because Caleb is off to Ravenswood that they're going to break up -- but we aren't exactly optimistic, which is such a bummer, because their relationship has been one of the best relationships on the show.

But this does fall in line with what we know about Season 4 -- executive producer Oliver Goldstick tells Zap2it, "Oh, poor Hanna. A treats her like a lobster -- it's chill, kill and grill. Chill, kill and grill, poor Hanna. She's our resident lobster in Season 4A."

What do you suppose drives Caleb out of town? It's probably "A's" doing, right? Ruh roh.

We can't wait to find out! "Pretty Little Liars" returns for Season 4 on June 11 on ABC Family.
Photo/Video credit: ABC Family