Some of the changes currently being tested:
Interdiction has been removed. The skill cannot be researched or used.
Castles build twice as fast.
Village buildings build twice as fast.
No new players may join the world in the last 30 days.
Houses can only have 3 factions. The first faction to apply to a House is accepted automatically. The other factions which apply will have to be voted in.
Twice as many villages per research level. (Example: a Knight can now have 6 villages instead of 3)
Limited time world. The counter will begin at Day 100 and count down to Day 0.
No glory rounds or ages. The house with the most Glory points at the end of the world will be the winner.
Prizes for the winning house and players who reach the top of certain leaderboards. (Special card packs with cards like Eureka, Expert Discipline, Expert Protection, Holy Envoy, etc)
Slightly different map, with more Kingships available. (Based on the kingdoms of the Anglo-Saxon era British Isles.)
New:
Honor from Banquets will be doubled.
Rank needed to start a faction reduced to 12.
Initial peacetime on first village reduced from 5 days to 3.
Research times reduced by half.
No honor penalty for attacking players of the same or higher rank.
Faction members may attack each other. (No more needing to drop faction to capture a village from a faction mate.)