Well, this DLC is not very rewarding.
Moreover I was really disappointed for the fact that there is not even a new sovereign for the Undead race...
I really agree that this DLC should be patched with far more content. You should reward your loyal customers, not only ask money.
Not everyone will have the DLC with the undead so I don't think they can will release a second sov for the undead. They could patch the undead mod to add a second sovereign though, but honestly DLC are generally not dependant on other DLC. Anytime Stardock comes up with a new idea we should not expect that all of the previous iterations be patched up to follow suit. As far as the DLC, the custom abilities look interesting to me, but I kinda wish there were like 6 total but it gives some interesting playstyles to try.
In the future, I would like to see more face and eye textures, as well as more models, body types and animations. Most of the animations and models are the same as when FE released. I would try more mods but my experience with mods are that they generally
For future DLC, I think more monster packs and more wild land stamps would be nice. Also, I kinda wanna see more variety in the encounters. But considering they are all composed in XML maybe more encounter packs. Also, an in game item forge (MoM AoW2/3) would be cool.
As far as being more rewarding to customers they have released 6 free patches, as well as one this week, that includes content updates. Not to mention all the updates in previous iterations. And some of us got the game for free because of a previous promise Stardock made. Pretty sure they need to make money "sometime". They kinda are a business. Also, DLC is not required to play. You can opt in if you find value in the product.
BTW, as I mentioned above if you could pick just a couple mods that the author is trying to keep the original feel of the game I would like input.