But there's a new Sherlock special, and so if graceful escapes me, perhaps natural will work? Spoilers below, obviously.
Observation #1: "Completely Victorian," my foot. But then we all knew that these two men were lying liars who lie around lying. So no great surprise there.
Observation #2: Fatsuit Mycroft was a low blow, completely predictable and not even all that subtle. Right up until the point it wasn't anymore. The bet about how long he'd live was fascinating, and as much as I hate to lose Mark Gatiss on the show, I'm increasingly sure that Mycroft isn't long for this world. (Though perhaps there are just other ways he's not going to be able to survive as protector, and still live.)
Observation #3, really more speculation: the special suggests Moriarty is really dead, except as an idea in Sherlock's mind-palace. I don't buy this in terms of the series as a whole: every story needs a good old-fashioned villain, after all, and it's structurally pretty unsound to shift villains midstream after putting so much work into building up the Sherlock-versus-Moriarty conflict. And if you ever wanted us to take Mary seriously as Moriarty II, the bits of modern!Mary we see - her completely unmasking herself to Mycroft, using her skills to help Sherlock - are just one more step you're going to have to overcome. I'm not saying it can't happen, but it's narratively speaking a very odd choice to go further down that road if it's now supposed to be Mary-versus-Sherlock.
I'm going to be predictable here and let my shipper out to play, because I think we now have canon Johnlock - inside Sherlock's mindpalace. By which I mean the "real" Sherlock - the one from the modern times - is now aware that he loves John* romantically. We've moved from a debate about whether the Sherlock-as-passionless trope is a construct presented to the world or whether it's reality, from that discussion to the assertion by Sherlock's darker self that Sherlock and John should just get married already. At which point the two of them together kill Moriarty off once and for all, and we end with John and Sherlock back in 221B, with no evidence that Mary is at all on the scene. This episode is all bout how women are unfairly confined to certain gendered expectations, and that's what makes the canon Holmes-Watson relationship possible. (Not necessarily a romantic one, but just the two-of-us-against-the-rest-of-the-world,
There are two ways out of this situation that I can see: Holmes, Watson, and Morstan together, or Holmes and Watson together without Mary in the picture at all (since she won't tolerate the small piece left for her). Both are real possibilities, but Victorian!Holmes makes a pretty clear choice to my mind: him and Watson back in their chairs in Baker Street, with Mary nowhere in sight.
Of course, at this point that's a fantasy, but it's what Holmes wants, and he's being more explicit about that than I think we've seen in a long while.
Actually, I think he's being pretty explicit with John, too. He tells John that Moriarty is really dead, that it's just what he had come to represent for Sherlock that survives, but then turns around to say he doesn't need drugs anymore because he has the real thing in front of him. If John lets himself think about that, then he's either going to have to work out that Sherlock was either lying about Moriarty being really dead, or else that he's on to something else equally big. This at a time when as far as the viewer knows, Sherlock has absolutely nothing else going on.
My personal preference/hypothesis/hope? Moriarty survives and still needs to be conquerd, but the meme of Moriarty, the force Sherlock defined himself in opposition to, is a thing of the past. Which is the only thing that made room for Sherlock to finally beat Moriary and not die in the process, because that's what lets him not have to face him alone.
Which is pretty much the character development arc that I've always thought this show was all about. Godspeed, series four.
(And God save