Drizzt DKs make me sad too.
I kinda feel bad for DKs in a related sense. At the start of Wrath, and for a long time through Wrath, you had the option of making a 2h casterish melee class in the DK. You had a few options -- become a pet class and go Unholy. Hate pets? Go Blood or Frost, though Frost didn't last too long... but that was alright because Blood was fairly similar, and even had the option of better and more... naturally flowing self-healing. It sorta became a niche.
I worry about the continued existence of 2h Frost, but we'll see. I think they have a lot in stake there... if that falls through, people who rolled a DK to do DPS have two options: drop the 2h thing for dum ol non-traditional dual wielding DKs (which still to this date seem very very wrong to me!) or hope you like being a pet class and go Unholy. If no frost 2h, the original class as you envisioned it way back when is gone, a casualty of, predominantly, tanking tree design experiments gone bad.
We shall see.
In other news, I'm surprised at how little 4.0.1 seemed to affect my guild's raids. Individual specs went way up, down, or stayed about the same... but overall raid dps didn't change much for my guild last night. That's likely a result of just having the right specs present to balance out properly, but I'm sure it was also in part misleading data since we aren't playing our current specs to nearly the same degree of expertise as we were before 4.0.1. I was testing out Moonkin last night because we had a lot of healers on otherwise and I was playing kinda poorly, with mostly unreforged and oddly gemmed Resto gear, and still came up around 12.5k dps... well ahead of where I used to be before the patch, despite forgetting to cast the new Boomkin spell half the time. Not to mention it's been a really long time since I played Boomkin at all.
Upcoming buffs announced will definitely help my guild's usual comp, though, and I'm eager to see where Ferals (dps) sit. I really, really came to love that spec, but at the moment it just doesn't compare to even much worse geared Boomkins.