I've been curious about the possibilities of a united elven force for a while, albeit in the context of pre-Sundering rather than End Times. Apart from a brief flirtation when I was just starting off, though, I've eschewed Dark Elves for a couple of reasons - I wasn't particularly fond of the Khainites in general (even as a horny teenager, I found the Witch Elves to be a bit... silly), and when I was also looking at High Elves and Lizardmen, then the things I did like about Dark Elves had enough crossover with those two that taking all three seemed a little... redundant. I'd also generally had a policy regarding armies that if there was something that you really didn't like about an army you probably shouldn't take it lest that become the direction that gets focused on in the next book, and by and large that's been vindicated - most of the new stuff that has come out for the Dark Elves since 6E has only turned me more off them.
As a unified list, though: I've always had a liking for the idea of repeater crossbows (although a raised a mental eyebrow balance-wise when they got armour piercing...) and hypothetically I could see myself getting a few of those if there was the option to field them alongside High Elves as part of a unified list. And possibly some hydras or other beasts, Corsairs, Cold One Knights, and a few others... watched very carefully, of course, or reflavoured as something else (these aren't Corsairs and Beastmasters, they're Cothiquan monster hunters! And why should we eschew the traditional Nagarythan repeater crossbow just because of who else uses it?)
Similarly, a bit of Wood Elf stuff seems to fit in as troops with a more Avelornian flavour.
However, this is all hypothetical, as at the moment I'm not really in a position to enact any such plans. But if I did have the disposable income and a reasonable expectation of being able to paint up and fight with the units, I could see myself sprinkling in a bit of both of the other lists into a High Elf core force when I wouldn't collect either the Asrai or Druchii on their own.
Shannar, Sealord wrote:
On a side note, what reason is there going to be to take HE archers at all anymore? And the banner issues on the HE core are now going to stand out even more.
If you want a unit that can act as either archers or spearmen, doesn't have to fight in a forest, and you're too cheap to shell out for actual Lothern Sea Guard? But yeah, certainly for any actual archery they're only ever going to pull ahead of Wood Elf archers if they have three+ ranks and either the target is completely unarmoured or it's lightly armoured and you can't Volley Fire...