I have a theory..

for the season 2 final, as آپ know we have many midseason finals etc. and with each one one of the girls was endanger یا killed,
Season 1x10 - Hanna hit سے طرف کی car
Season 1x22 - Spencer nearly pushed to her death
Season 2x12 - Emily nearly killed سے طرف کی the fumes
Season 2 final i think Aria could be endanger
Well thats what i think anyway, it would be cool if i was right, i never can predict the season finals