End rings with different biomes on each

In an end update, there could be rings of end stone surrounding the main island about 300 blocks wide. On each ring there would be a new biome with each having a different theme. For example the first ring would be the current outer end islands with end cities and elytras but as you travel further out there would be increasingly hostile areas. On the last ring there should be a new mini-boss that adds a new weapon once slain. This update would add new incentives to go to the end. Players could finally get an end update while keeping the old feel of the end with the first rings. Currently player only go to the end for the dragon, shulker boxes and elytras and this would add new blocks, mobs and materials to the end.