That's the best story featuring an Eldar I've ever read, well done. Really captures the nature of the alien. How long will the finished piece be?
The main character was my original character for the in-character portions of the Conclave, back when that's all the Conclave was; as of 999M41, he's eight thousand, six hundred and thirty eight years old... needless to say, there's a lot left to cover. I'd say that I'm probably only a third of the way through, half-way at a stretch. Certainly, there are some big events yet to cover, such as the Tyrannic Wars and the conflict on Haran, that I've mentioned Alundirel being involved in during previous in-character posts in years past.
In terms of constructive criticism, I note that you move quite late on - about half way through - to dating each passage, whereas previously the reader is left to work out what time things happen. It's a bit inconsistent and would work better if you picked one method and stuck with it; personally I'd date every entry in Eldar and Imperial calendars.
I started doing that mainly because the story stopped being linear as I started to explore the origins of the Kindred of the Silent Hand, an organisation to which Alundirel will eventually belong. Leaving the time somewhat ambiguous only works so long as you're not jumping millennia forwards and backwards.
I see your point, though, and will look at adding additional dates to the older posts once I get the chance.