The rules:
http://www.reddit.com/r/WarhammerFantasy/comments/247s27/wood_elves_rules_rumours_compilation/It is certain that the style of play will change drastically. And that's what I don't like the most.
No more move and shoot without penalty, no more S4 bows at short range and similar stuff means that they'll no longer be hit/run/divert army.
Actually they're going to play just like a mix of Dark and High elves (and that's exactly what they are becoming).
The main reason why I'll probably skip this army after all.
Now what should I do with the Black dragon I bought? Maybe start Dark elves?