One of the primary reasons why max level players still play p101 is pvp. The state of ranked pvp has been in rapid decline recently. This is largely due to the removal of the champion weapons. Additionally kingsisle appears to be rather hesitant in adding the weapons back, and therefore I would like to recommend the addition of a leaderboard to ranked pvp. This could also be implemented along side re adding the champion weapons.
This could be a vey easy and low effort improvement