I thought it would be fun to take some of the ideas going around and try to mix them all together in what it might look like if high elves were playable and these were their options. Some things I copied more directly than others, and I know I could have gone further in some areas, but this ended up taking longer than I thought.
Faces
I decided to not only play around with some scarred options, but I put one in there with shorter ears. In the classic Warcraft II artwork of a high elf fighting a troll, the ears were much shorter. I used that as inspiration along with the dialogue from Elisande about high elves mingling with lesser races. I also made an aged option, since that's something missing on current elves that could help reinforce these as much more world-weary.
Hairstyles
For the men, I tried to take inspiration from different cultures than the blood elves, though I don't think it turned out too well. I thought a little 80s stuff would make them feel more wild, and tried to put some more curly stuff in there. For the women, I tried to do some shorter and more combat-ready hairstyles, as well as some messier ones and braided ones.
Hair Colors
For the hair colors, I tried to go with earthier tones, as well as some very light and silvery ones. I tried to avoid red outside of a dark auburn to create distinction from blood elves.
Beards/Accessories
I went a bit crazy with the beards. The idea was to again take Elisande's dialogue about the high elves being peasants who mingle with other races, and decided that could mean they have much larger and more wild beards (whether that be because human blood allowed them to grow larger beards, or that larger beards are simply not in style with the higher class blood elves). I'm not really happy with the accessories I made for the female elves. I tried to take various ideas like more subtle jewelry and feathers, but most of them sort of disappear into the hair unfortunately.
Skin Colors
I tried to create some strong extremes here. The idea was to have some tanned options from living in the wild more, as well as some extremely pale options to create some strong contrast. Perhaps some of these options are also a result of human blood somewhere in their heritage.
War Paints
As much as the war paint is central to what I like about the high elf pitches in this thread, I didn't feel up to the challenge for very many options. Each one is based on an existing design, whether that be Warcraft II or one of Alleria's several variants. I also added in symbols from the elven runestones in a couple of places, but ran out of ideas after that.