New codex in the next two years, that is my best guess.
Comparing
WW to walkers from different armies, it is not unreasonable to simply move them into
FA. If the cost of weapons are decreased, or new options are added, a minor cost increase would make sense. Eldar are simply outdated, and not able to effectively deal with most new armies. You will have to meta-game to specifically beat
BA/
IG, depending on how anti-eldar the lists are.
AT weapons are overpriced in general, and in
FNP/
AV heavy gaming environments, that is really bad news for Eldar.
I can beat new armies, but I simply can't effectively compete in a serious tournament. There are too many things that can wreck any strategies I use, and tactics become way too complicated to be reliable.
At least my army looks awesome... it would probably help if I got around to painting it.