I do not think the game has huge imbalances, but do think that if the small imbalances that currently exist now are not fixed prior to WA, that the whole balancing attempt of WA will be skewed on a poor base.
The following 4 items alone NEED to be changed. All the other balance complaints are small/debatable in comparision to these fairly commonly accepted issues. If these can change, DoW will see a vastly more balanced playing field.
-Defiler
-Chaos Sorcerer
-Fleet of Foot
-Warp Spider
Big changes and long lists are bad. They will only open up new problems (eg, 1.3 fixed 1.2 problems and made new ones).
Again, small changes....toy with costs, times, and armor penetrations...nothing spectacular.






Apocs just heal too much, tone that down
). The second best dancing unit in the game is EVERY ELDAR INFANTRY except Warpsiders. This should be sufficient to dash your hopes of balanced ork vs eldar, with or without warpspiders, but if you need more.

