I have seen quite a few people commenting, both on the forums and in game chat, about how they keep clicking on the new Colony Ranking icon by mistake and it has occurred to me that between the avatar and the row of icons across the bottom of the screen we now have three buttons in the main interface to access the various Colony Mode information when we only really need to have one.
Therefore, my suggestion is to do away with the "Rankings" and "Colonies" icons from the bottom of the screen and have the existing button under the avatar open up a colony interface that would look something like this mock up I threw together:
As you can see, the "Rankings" button has instead been incorporated in the existing "PvP Overview" tab and an extra "Colonies" tab would need to be created to allow players to view their colonies instead of interface we currently get by clicking on the globe.