It's true that the show ended on an almost happy note with Elliot undoing the 5/9 hack, but as the post-credit scene showed us, it's probably not going to work out the way Elliot hopes. Someone cited the example of the shop owner who, before the 5/9 hack, may have had debt in the form of credit cards, mortgages, loans etc., so for all that he lost in the form of his store, he also had his debts wiped clean. Now that Elliot has undone the hack, the shop owner has all of his debts back, but no longer has the store to pay them. Hard times are ahead for many.
Irving was awesome this episode, really showed his teeth for the first time, and quite frankly scared me. I can't believe Dom didn't just go along with the DA initiation, she had to be blackmailed and threatened to do so, but I don't see her going along with this, I suspect she will find a way to work against the DA.
The Price / Angela revelation was long coming and guessed by many way before it aired, but it at least gives Angela some much needed time to grieve.
I do think that Elliot may have gotten one over on the DA though. The Iranian humanitarian mission that was off to the Congo gave the DA their way in, but given that the DA have spent much of this season priming Iran to be the 'bad guys' in all of this, I wonder if Elliot has done this so that when the US implement sanctions (or whatever they decide), the use of Iranian vessels by the DA will be exposed. Could be nothing, just wondering...