The Fandom tour is a project under development that will tour you through every active Fandom, along the lines of the Wiki Tour Bus but focusing on Fandom. The Central Wikia will be added to the Wiki Tour Bus with the option of diverging from the main tour into the Fandom tour, since it would probably not be a good idea to add more than a thousand Wikia to the main route.
It is easy to add a new wiki to this tour, since you can use a simple template to transclude content from existing pages on your wiki. You don't need to create any new content, other than adding a brief "commentary" to each transcluded page. Once your Wikia is linked in, it is similarly easy to insert other pages in it.