Pretty Little Liars is a huge hit, which is great. However, if its success continues, the show will be faced with the same dilemma all successful high school shows eventually run into: What do you do when the girls graduate?

The classic solution is to have all of the characters wind up at the same college, so we wouldn't be shocked to see the Liars at Hollis (though getting Spencer [Troian Bellisario] there would require some impressive manipulations). However, sometimes shows go a different route, and recently executive producer Oliver Goldstick revealed that the PLL Powers That Be have toyed with the idea of introducing four totally new Liars when the current crop graduates.

While we trust the PLL creators, the idea of moving on with four new characters seems awfully hard to us. The Liars are the heart of the show! On the other hand, we've adjusted to big cast changes on shows like Glee and the UK version of Skins, so maybe we'd warm up to newbies on PLL, too.

Of course, this is all very theoretical, since Oliver said the girls probably wouldn't graduate until Season 5 anyway. But we want to know: Would you potentially watch the show without them?

Find more Pretty Little Liars spoilers here.

Catch the next episode of Pretty Little Liars on Tuesday, January 22, 2013 at 8 p.m. ET/PT on ABC Family.