And to be fair this spin-off will be set in the same universe it will apparently have it's own characters with a brand new story. So A will not suddenly be in the next town messing with someone, or will she?
(Nor will someone apparently try to escape A by moving to the next town.)
From “Pretty Little Liars” executive producers I. Marlene King, Oliver Goldstick, Joseph Dougherty and Leslie Morgenstein, “Ravenswood” will center on a town, not far from Rosewood, PA (the home base of “Pretty Little Liars”), which has suffered under a deadly curse for generations. Five strangers suddenly find themselves connected by this fatal curse and need to dig into the town's mysterious and terrible history before it's too late for each of them. The series will premiere on ABC Family following the annual “Pretty Little Liars” special Halloween episode in October 2013.
Link
Yes, okay, since the new series will clearly have paranormal elements that might seem weird since on the surface Pretty Little Liars is just a regular universe, but for those of us watching the show we know there's been some paranormal elements on Pretty Little Liars, and also possibly Alison (A?) herself is one of those elements.
Seriously, I've often thought while it made sense for Mona or even Jenna to be against the girls there are other things since the reveal that Mona was A that makes it seem weird that A continued beyond (but not without) Mona. Of course, I've often thought A was tied up with who killed Alison, but it doesn't seem like Mona killed Alison.
Now you may be asking who killed Alison - which is a very good question, but nobody knows. Way back I thought it was Jenna and Garret, but that seems to be not the case. Hell, nobody knows at this point if Alison is even actually dead, despite her body having been found a season ago. And I've often thought the one way this series would make sense is if one of the pretty little liars killed Alison and she was getting revenge from beyond the grave. Though to be fair Alison did appear to Hanna when she was all drugged out after an accident and implied that she wasn't A by saying she needed to take care of A. But that was back when Mona was A, and now Mona is another As bitch.
Well, season three revealed Mona got a partner who helped her out after she got caught for being A. Who is this partner? No idea, but apparently she wears an Alison mask and may actually be Alison.
So you see - you think this is a soap, and in some ways it really is, but then there's this other whole big part of it. Really Pretty Little Liars is a soap but it's also a mystery - it's basically what Ringer wanted to be, but Ringer unlike Pretty Little Liars just couldn't pull off.
So, yeah, I'm kinda excited for the spin-off, especially since it seems like it will be its own thing just set in the same universe as Pretty Little Liars, but that's why the news of a spin-off came as a shock to me because Pretty Little Liars itself is stretching the A story out almost too much as it is, and while there are a wealth of characters on Pretty Little Liars it would be hard to build a series around them without A - but it looks like the folks behind the spin-off knew all this, so I'm kinda thrilled right now.