It usually does........
Actually Season 4 was the only one to end with a real cliffhanger. Season 1 ended with a closure of sorts as they were leaving the CDC. Season 2 ended with open questions as we saw the mysterious woman with the sword and Walkers in chains saving Andrea, then we saw the group by the fire with the prison far away in the background.
Season 3 ended with a true closure, then of course there was Season 4 which was a cliffhanger in every sense of the word. That was nearly gut-wrenching, having to wait all Summer to reach the conclusion of it!
Surely they wouldn't put us through that again! lol