For starters, this city doesn't have any Lurkers (archers) That is the first ones that come to mind to match the other cities.
Also, if one were to create Deorcynsse the idea I had would be to edit the Wildland itself and choose it to take a level 2 city from the beginning. Then force the growth of the city to be at 0 (namely a -3 growth). But once captured give it the ability to build a unique building that returns the growth back to normal (namely a +3 growth). A large AI priority would force the AI to build that building first.
Then add a choice of 3 buildings for each level 2, 3, 4, 5. This could be as simple as copying the other abilities from each of the abilities. In such a way that one chooses one from each category, since this is a unique wildland building it is not focused and can be all 3 types at once. It would still be called a village, since they have hard coded only 3 names for cities.
One issue of capturing this city at level 1 is that when you level up you will replace the unique graphic of deorcynsse with one of the other City Hub graphics and so it is not desirable. Hence, why I suggested starting the city at level 2, since I tried to give deorcynsse a unique set of abilities strating at level 1, but it didn't appear to work out the way I had planned (Hence, I never released the fix)