FINALE SPOILER
DO NOT KEEP READING IF YOU HAVE NOT SEEN IT YET
Well, my theory was pretty correct for the most part, damn it.
I always thought the original series should have ended Dexter either a) being exposed, or b) dying.
Here, we got both.
I won't say this ending was great, but it was good. Definitely a lot better than what we got in Season 8 of the original series, although almost no one will call this one of the best endings ever. It was good, and considering what they had to come back from and work with, they did probably as good as could be expected.
R.I.P. Dexter Morgan.
And kudos again to Michael C. Hall for not only an amazing performance in this finale, but for nine seasons of playing this dark character in such a brilliant way.