I'll try to make this condensed.
A] Put a legit mishbuddy/clicksaver in-game. I'd love to hear the funcom coders's excuse for not doing this um 10 years ago.
B] Put an actual pet mode that sends them to attack an enemy when you yourself attack.
C] Put actual damage log mods into the game, ones that can count your pet dmg tallys to you.
D] Do something about sl quests being impossible to do.
E] Fix pre level 200 pets. You know, the ones that dont do anything (because they miss all the time), while the level 30 soldier with a peren rips through mobs just like he does at 200?
F] Add a chat filter in game to see when your pets miss.
G] Do something about pets following you ON THE GROUND BY FOOT when you fly in a yalm.
H] Please make le mission victory points reward actually worthwhile. Or entirely remove them. For whatever reason, having 50 per mission really rankles me.
Sort of rebalance but who cares] Work on gap-closing moves as well as gap-making moves. As well as incentives to move around in pvp. Do something about the close-to-flying runspeed that everyone has post level 150.
J] I would really, really suggest enhancing the RK environment. Current forests look watery with a few shrubs, and cities are like one story. See the Star Wars MMO for how futuristic metropoli should look. Make forests thick and lush, and near nice bodies of water. More team content in such places not another instanced building with dark monotone-colored walls.
K] MMO's need to start incorporating what guild wars called "Dynamic events." Basically, the story goes the way players shape it. Work on developing a world where players can raise cities like borealis which are quest hubs, determine what architecture style looks like, etc. Work on systems where stuff invades and you have to defend. Quest givers should move around. In player-created cities, quests should be those that have been specified by players.
L] Make a macro-making interface. For example, Crat's pupeteer requires robotic pet to be targeted. Currently, not possible to make a one-press macro to target pet and cast the perk on him. Big time fail.