There are lots of new blocks, village types and biome changes since the 1.10 release. Rather than do yet another server reset, I’ve expanded the world to 8000 blocks wide. That gives us another 3000 blocks of unexplored territory in all directions. New territory should generate with the 1.10 engine and so we should see the new blocks, biome changes and villages in the new areas. The new territory will auto-generate on the map as players explore those parts of the world, so players will be able to see where the new territory is and what has yet to be explored.