They revealed a ton, but there's a lot more left to reveal. And nothing was really resolved, since they're still after the same people they have been since the start of the show. That is to say, the people actually pulling the strings - other people of interest have already been accounted for.

A number of times I could see the story line going off the rails and what I thought were absurd moves by characters they expected us to buy so deep into the series. But they've managed to pull everything together and everything that happened and every action every character has taken was explained or put into context in future episodes. IMO, it's been quite well done.