My relationship with Dexter is a bit complicated. While I might be one of only a handful of people on this Earth who didn't hate the finale, that isn't to say that I loved it. Dexter did have a steady decline in quality after the brilliant season 4. I do think that I have a better ending for Dexter in my mind (Dexter is captured and has a season where he's a Hannibal Lecter type advisor to his sister), but I think the story they told is a fine one.
I think New Blood was an appropriate next chapter for Dexter. He's always wanted a normal life and stripped of all of his ties to Miami, he was able to live a fairly normal life.
What's strange about New Blood is that it doesn't do much of the things that Resurrection does. Resurrection is a parade of returning characters and cameos to take Dexter through the journey of his life. Resurrection forces Dexter to face the consequences of eight seasons in Miami. New Blood, in a lot of ways, allowed Dexter to start fresh. Resurrection doesn't really appear to let him do that.
The question with Dexter is always: "Is he a good person?" Yes, he's a killer. But can killing be used for good? I don't know if New Blood really tried to answer that (or if it did, I forgot). Resurrection comes out and says it - Dexter kills bad guys which saves good guys. But he also involves himself with bad guys, bringing bad guys close enough to him that good people in Dexter's life are killed. There's good and bad, and it would be almost impossible to settle Dexter's accounts to know if he's saving more people than he's getting killed.
I think I like the version of Dexter where he knows he's a bad person and he's just doing the best he can with that. Where he acknowledges that he likes killing, and if he's going to kill, he might as well kill bad guys. I don't really like the version of Dexter where he's some kind of victim. He's not Batman - he's the Punisher. The Punisher knows he's a bad guy who does good by doing bad things. I don't know if the Punisher has ever had a sidekick or an apprentice, but I would assume he wouldn't want to raise anyone else to be like him. Dexter has a son, but he's gone back and forth with whether or not Harrison even has a dark passenger.
I don't think Resurrection overturned anything I cared about. If the original Dexter was the end, I would've been fine. If New Blood was the end, I would've been fine. I don't think we *need* Dexter stories, but the character is so compelling that I'm happy to get new stories. I haven't had a ton of interest in the Dexter prequel because I think Michael C Hall's performance is 99% of the fun.
Is the revival plausible? I'm not nearly educated enough on stuff like that. Dexter was shot in the chest (I'm not even sure if where he was shot is a place you can survive), and from my memory of New Blood, the show was pretty clear that he was going to die in the wilderness. But he was shot in the snow, and Resurrection says that the show slowed down his heart enough to keep the blood loss from being too severe. Is that a thing that happens? I don't know. But it's plausible enough for this silly show in my opinion.
And yeah I did like it. I liked that it gave us the parade of former villains. I like that Batista is back and still looking into LaGuerta's death (one of the few deaths that paints Dexter as a truly bad guy). And if Hall is going to keep playing this character, I'll watch.