Since the summer premiere is the second part of the finale, I have a feeling that the episode will start off with Travis ID'ing the wrong girl (not CeCe) that he saw at the lake after Wilden was killed. Ezra will not die, the girls are brought to the station for questioning. After they're released, Jason will walk up to them and ask about the whereabouts of his mother. Episode ends with an -A message insinuating that she's dead.

I wouldn't mind seeing Jason in a black hoodie.

Also, I have a gut feeling that S5 will revolve around Ian's videos, since they did give us a clue of something incriminating against the DiLaurentis family being caught on tape. This of course, leads mostly to the twin theory