just away for a week, and what happened here
Just don't mix Epic UK with NetEA! an EpicUK list is balanced in comparison of other EpicUK army lists, which is different than NetEA. Usually they are "weaker" than NetEA (some guys call this "more balanced"

)
So, with the Blood Angels list, we had the same problem:
-Needed a new AC (XM solved this problem, and took the crown)
-An unbalanced list -he's answer was something like this:
1, localize the problems
2, solve them 1 by 1, and playtest every little change.
And it worked.
So, first, i think we need to localize a the main problems:
-Wraithguard -to powerful. Yes ,as a stand alone unit, it's true. But we need to change the unit, or we need some balance through the drawbacks of the whole list? My opinion is:
1, We need to change the army around Wraithguard, stricten the living few rules -it's not easy, when you need to buy 350p units to have options. It will be a failure. So we need a NEW living few rule! (something like at least 1 wraithbone unit /1000points, or something)
2, Just lower their number: 300p for 4 units + Spiritseer (as it is now), with an option for +50 for 1 to 4 more. More flexible, more combinations, but more expensive. Worth a playtest?