Blood Elf Death Knights..

[muhaha8]

What makes them still Sin'dorei?

Akin to asking what makes a green Orc a green Orc.

Just because they may not consume the Fel doesn't mean they aren't affected. Clean up a drug user and he'll still suffer from the same side affects for some time. It'll bleed out, if given enough time.

That, and the concept of Sin'dorei is as much a state of mind as it is a physical reality.

[Reigen]

They are still a Sin'dorei because they have green eyes, and those eyes represent them as now being their own race. Sin'dorei are part of the Horde, Quel'dorei are part of the alliance. Sin'dorei have red-tinted skin while Quel'dorei are paler. There are too many physical differences now to call them one in the same anymore.

Also, the magic addiction is not gone with the restoration of the Sunwell, yes, but the elves no longer feel the addiction because what was masking the addiction before is now back. They were always addicted to the arcane, but the Sunwell simply put out just the right about of Arcane in the world that the elves didn't really know they needed it as they did.

When the Sunwell was destroyed, they were cut off from that source of arcane only to find out they were addicted to it and needed it to survive. Now that the Sunwell is back, they no longer that addiction. Some may still have an addiction to Fel though, if they used it heavily, but they no longer feel the addiction to arcane unless they fell to being a wretched.

Also...

The well's potent arcane magic fed and strengthened all of the high elves on Azeroth.

All elves on Azeroth, which means that it does indeed reach across all of Azeroth and you don't just need to be in Silvermoon to feel it. However, if an elf is in the outlands, they'll feel it's absence.

[BountyHunter]

Regarding Death Knights, there isn't actually really any physical details (unless they still have their red tinged skin) that separate Blood Elven Death Knights from High Elven Death Knights. We, however, can only play Blood Elves who were turned into Death Knights, it's part of the 'No High Elves' rule, kind of like how we're not allowed to play Forsaken High Elves. Plus, High Elven Death Knights would be incredibly rare due to the fact that a large majority of them would of escaped from the north and travelled south to the Stormwind area and other places within the world.

Edit: Also, not to mention the Sin'dorei 'I'm better than you lot' mindset.

[LostStranger]

Edit: Also, not to mention the Sin'dorei 'I'm better than you lot' mindset.

Pff. Like a people that called themselves the high elves didn't feel that way before.

...Indeed, the physiological differences between a "high" and "blood" elf are indeed already slim, and, indeed, death knights narrow that slender schism even further...

The most significant difference would be that high elves are generally overcompensating patriots of the Alliance, whereas their crimson counterparts have decided that they just aren't going to put up with the persecution and joined the Horde.

And as a terribly trivial bit on the side, high elves would not have the same racial abilities.

...

At any rate, what everyone else has been saying.

It's possible, just as interspecies offspring is possible, but forbidden as it is not an option supported by game mechanics and is several varieties of dubious besides.

[Aadora]

They are still a Sin'dorei because they have green eyes, and those eyes represent them as now being their own race. Sin'dorei are part of the Horde, Quel'dorei are part of the alliance. Sin'dorei have red-tinted skin while Quel'dorei are paler. There are too many physical differences now to call them one in the same anymore.

Normally due to the extreme cold, their skin no longer has the red tint, and is replaced by the frozen blue tinted skin. Not all, but a lot of them.

And as for the eyes...
The ingame models show that the green, is replaced with blue.
I know though that model =/= reality all the time, but I have never read that the green is still there, and most blizzard art only shows blue.

On the note of:

There are too many physical differences now to call them one in the same

Of course... but most of those differences are removed when they become a Deathknight. Skin color becomes icy, eyes turn blue, and everyone is saying that the thirst for fel/arcane has been replaced by the thirst to cause torment. And I never heard of Deathknights being affected from being addicted to drugs or Alcohol in life.

Though I could be wrong.

[Reigen]

I was addressing elves in general about that, sorry for the confusion!

Also, not all death knights have icy skin, some have green-hinted skin and some are a blackish grey skin.

Edit: Now that I think about it, besides whatshisface, I don't think I've seen any high elf DKs.

[Aadora]

Ah alright.

And yeah but that is still along the point of both High elves and Blood Elves have blue eyes, rotted/frozen skin in death. So I am still confused as to what makes Blood Elf Deathknights different from High Elf Deathknights.

Just the "I'm better than you" outlook that a lot have or simply the knowledge of what you were in life?

Edit: ... I missed the other posts so uh, yeah, now I understand!

Also... I would think that High elves wouldn't be too uncommon. I mean, as part of the Alliance they would likely be anywhere that another victim of Deathknightification would be wouldn't they?

Hey, I was just wondering if Blood Elf Death Knights... Are Blood Elves? Since some of them should've died in the Scourge attack on Silvermoon, and they probably were in Acherus when the Blood Elves digested the Fel. Would they suffer from the Magic Addiction? What would make them Blood Elf... I am probably wrong or something, but I think they would be still kind of Half-Dead High Elves or whatever ._. ....

This is my attempt to sum up what people have said and give a straight answer to this!

The Sin'dorei Deathknights we are allowed to play as are third-gen Death Knights. So they wouldn't have become Deathknights until only 4 years ago. If they had died during the attack on Silvermoon, and were just raised 4 years ago, I think they would then be more... Forsaken material XD

But so far, I think the main point is that what makes a Sin'dore Deathknight a Sin'dorei... is the knowledge that they were a Sin'dorei in life.

[Fortwit]

Technically, dks are in essence, high elves. In my understanding, Infused with huge levels of arcane rather than fel in their resurrection leaves them closer related to high elves than blood elves, however due to our timeline and rules, your character would identify themself as blood elf as they had several years of fel addiction and sin'dorei pride before they became dks.