Well, the series is over, with a final episode “10 years later” (well, the very beginning showed young Bruce Wayne travelling to Nanda Parbat?)
Selina is played Lili Simmons (Carmen Bicondova thought it was better that way), Gordon has a mustache for a bit (tribute to the comic), and Barbara SR is a redhead.
Batman is mostly seen from the distance, though as planned was the last frame of the show.
Brian
In the comic “Dark Knight Returns,” Joker is revived after years of being comatose by a news report that Batman is back - in this episode of Gotham, Jeremiah is revived by news that Bruce Wayne is back in town.
This final season was a bit of a hot mess. What happened to all the Intergang warfare? What happened to the insinuation that Lee had become a sleeper agent like Nygma? Bruce just up and left to go to Nanda Parbat without much warning or foreshadowing. Speaking of foreshadowing, there wasn’t much about bats except for that one episode.
The final episode was also a hot mess, more fan service than anything else. I liked that we got to see young Barbara Gordon. I also liked that Alfred and Lucius were both in on the whole Batman schtick right from the start. Selena seemed to be aware of it as well.
There’s scuttlebutt that there may be a Catwoman spinoff, set during the decade that Bruce was away.
Lee was an agent (who tried to kill Gordon), but was freed the same way Nygma was (by an electric shock).
And there was an ad during the program for an Alfred/Thomas Wayne prequel Pennyworth (TV series) - Wikipedia
Huh? When was this? I must have missed am episode.
Episode 6 of this season “Thirteen Stitches”
“Over at the GCPD, a distressed Lee is trying to figure out why she can’t remember anything from the past three months. Jim doesn’t have answers for her… until she suddenly tries to kill him. Yep, she’s the other agent. She was also “treated” by Strange after she stabbed Ed and Ed stabbed her.”
Cool, IMHO she was the standout character. And the actress is destined for bigger things.
When all is said and done…I liked it for what it was. There were plenty of colorful characters, the action was intense, there were plenty of genuinely shocking moments, and I feel that this show really did its best to answer some of the lingering questions about the franchise (most notably “Why is James Gordon willing to turn a blind eye to an unhinged vigilante?”) Lots of forced or hammy moments, but every superhero property is like that.
If there’s one way I was unsatisfied, it was all the characters that never got a proper sendoff. I already mentioned Nathaniel Barnes, of course; now you can add Firefly, Freeze, Jervis Tetch, Jonathan Crane, Ivy Pepper, Hugo Strange, and Victor Zsasz. (What the heck does Zsasz do now that all his meal tickets have either died or dropped him like a bad habit?) Heck, I wouldn’t have mind seeing Headhunter or that girl Tabitha Galavan rescued.
But like any other big city, there’s another story to be told. I’m not super-hyped about the upcoming Alfred Pennyworth spinoff…there’s only so far you can delve into the past before it just gets, well, old…but the Catwoman show looks like it could be a hit. What can I say, Camren…
(Quick aside: Camren. Camren. Camren. Not Carmen. Cam-ren. Can’t believe I messed it up for that long. And I see that I’m not the only one.)
…Bicondova is never not fun to watch.
What the heck, “Gotham city without a Batman and why that’s a bad thing” just plain worked. A cheerful 7/10. 
One final question: Did Fox really sign up the Christian Bale to deliver a few lines and put on the suit for a few seconds? That definitely didn’t sound like David Mazouz (or Ben Affleck), but I don’t recall any credit given.
I thought it was a reasonable end to an uneven series. We enjoyed it all the way through, but you certainly had to overlook a lot of silliness to do so. Still it was a reasonably fun ride.
I thought the standout characters of the series were Alfred, The Riddler and The Penguin. Those three actors really managed to pull off their roles spectacularly. Also, the guy who played The Joker did a great job.
I think this series had the best Alfred of any Batman property I’ve seen. If there is a ‘Pennyworth’ series I’d love to see the same actor in it, but if it’s an early prequel I suppose it can’t be.
To me, the penultimate episode felt like a finale, and would have made a better one. I could have done entirely without the “10 Years Later” events, which were essentially a series of familiar Batman imagery, so that we can all squeal, “Oh look, the Penguin has a top hat and monocle now!” and “Oh look, that’s the Bat-signal!” There was nothing fresh or surprising about any of it. Not that it wasn’t kind of fun, just completely unnecessary.
And what a slap in the face to Camren Bicondova, to have been with the show since the pilot, only to be replaced in the final episode. Surely they could have used makeup or CGI to make her look older.
Speaking of which, they could have bothered to age some of the other characters. Harvey especially. He hasn’t changed his clothes or hair one bit in ten years!
Camden herself made the decision to give up the mantle of Selina Kyle to another actress.
That is quite interesting. Good for her, I suppose, for putting the character first. I still think she could have pulled it off, but of course she didn’t ask me. 
Finally finished, and I’d call it a satisfying finale. I think the actors who played Riddler and Penguin both grew immensely during the series, more than any of the others. While I don’t necessarily think the actors needed a send-off, I would have liked some foreshadowing of more Batman villains, though I understand how it might have been difficult to fit into the time.
I finished the season a couple of days ago. I didn’t really care for much of this last season, or the previous. I don’t like how they kept bringing back Jerome/Jeremiah.
So… Barbara didn’t have to face any kind of justice at all? Wasn’t she a murderous criminal before the time jump? She became a mom, so all is forgiven?