No, you are pretty much correct. Facebook gets the update before Plarium.com due to ease of implementation - Flash Player has fewer issues there. But soon enough the process of porting the game to a new engine will begin.Yes it is only on FB for now. As I know, first they add all new things on Russian browser, then FB servers and then on plarium.com browser.. It's not always the same, it's more difficult to test and do everything on .com (at least that is my view, maybe it's not correct).
But I'm sure they will add this in one of next updates.
For example, in game Stormfall on FB there are even more things which we don't have on Sparta (FB) and they will be added in future.
Please explain how exactly this city schema requires new game engine? None of these bonuses listed is anything new. Somehow plarium managed to make new tournament "Treasure Hunt" without new engine. This city schema couldn't be complicated to implement, it's just a bunch of bonuses and new city look like that pumpkin schema for Halloween, but this one is without special bonuses.No, you are pretty much correct. Facebook gets the update before Plarium.com due to ease of implementation - Flash Player has fewer issues there. But soon enough the process of porting the game to a new engine will begin.
Treasure Hunts were around for a while, they do not require many changes. Other additions or features may need developers to make more significant changes to the code than one could expect. In the example above, 100% defense from Political Attacks would be more difficult to implement than it seems from the outside point of view.