Hi Bobo,
One feature that may encourage participation from those less familiar with the wiki interface would be a "default nation" template whose structure remains fixed, but whose content could be edited to add information specific to a ruler's nation.
From what I can see, the Wikia platform has much more functionality than most users will ever require. This suggests that the question of "improving the CN wiki" is more an issue of applying the facilities that already exist rather than searching for a newer, shiner platform.
Also, shixty yayt.