Here are some thoughts to improve the current leaderboards:
-ability to view your current rank outside of the top 50 to allow more players to participate.
-adding filters for sub-classes. right now, if you check the top 50 for rogues for example, its almost all falconers since its meta. being able to see how you compare to other markmans would be nice.
-adding filters for CoF and MG players. Trading will almost always be better which is fine but since RMT has been a big problem so far, adding filters would help maintain legitamacy to the leaderboards for people who care about that and allow a true SSF experience.
-adding a seasonal 1-100 board for people who are into speedrunning and want to plan routes and theorycraft party compositions.