Instead for the introduction of the characters from the dlc.
Along side some lord specific mechanics and maybe some unique units. Such as adjusting the roster to be less demon focussed and more warrior focused.
-Archeon should be added to the undivided faction (where I assume belakor will also go) give him special chosen units.
-Kholek should be added to khorne
-Sigvald to Slanesh
-Sathorial should go to tzench (let CA make their own character like they did with cylostra)
Could couple that with a flc for Nurgle to keeps those peeps happy.
As long as they are playable and updated I think that will meet any obligation CA has to the people that own the DLC without having to completely overhaul
I like all the races. Equally. Wood elves are just the first among equals.