The Eldar aren't really any better than anyone else other that on the TT.. which really is entirely because GW allows them to be.
just dont make there weapons like the NC for planet side. Dont get me wrong i love the NC but there slower firing hard hitting weapons dont compete very well against the other faction low recoil i win bullet howes. Heck i can lose both long and close range fights with there weapons just because miss a single bullet hurts me much much more then if they missed one or two. But i lose so much dps if i burst fire. That if i do burst fire to get every shot to hit i'm still dead before i can shot off enough round to hill the guy.
Shuriken weaponry should be closer to TR than to NC, big magazines, high rof and low damage per shot. I will wait until we know our final 2 classes and the warlock psychic powers before I say how I think eldar will play in EC
Like the downfall of all Empires, they fapped too much and created a god of pleasure that devoured them.
Best part is, half the guys continued doing that anyway, and are still going strong (stronger than the other ones, even!)!
Trading improved power for a harder learning curve on only one faction sounds to me like a very, very bad idea. Unless you happen to be the faction with the harder learning curve, in which case its a fantastic one.
Maybe it will help boost up the low population. At this point I just want to see all of our classes- anything beyond that, including possible power levels/ tactics/ whatever, is relatively pointless speculation.