I see a problem with this - in resources.
Regarding the goods, that is no problem for higher age players. Anything above FE cannot be used for GvG anyway. Same with the treasury. The type of goods needed for the battlegrounds buildings is based on the highest members of the guild (if I understand it correctly) There is no other use for AF, OF, VF, and SAM goods anyway.
What is a problem is the cost of the game's most valuable resource - time.
People playing in more worlds will need to drop some of them. Some people playing in only one world will leave the game when they run out of the time.
Inno was supposed to balance this by reducing the time cost of other game features, such as adding "aid all" and "visit all taverns" functions or user-defined number of fps to add to a Great Building. Do the developers think that is is entertaining to click 4000 fps in by the steps of 10? That is 400 clicks!
This is the same mistake the developers keep doing. Adding new, time-consuming features without reducing the time consumption of the old ones at the same time. (They used to do that a couple of years ago, by simplifying the aid and taverns, but not anymore, why?) Saying that the new features are only optional in an invalid argument because (some of) the competitors would use those for sure. Adding new game features without balancing the time requirements cost you customers. It costs you money, don't you see it?