So, reading this Riot Pls, one really major thing hit me
You didn't list cleaning up the community, fixing the tribunal, adding pregame reports, or anything at all related to fixing what a horrible place this game becomes when playing with randoms. That says alot about where your priorities are and it's quite disappointing. If you don't do something about the community, the type of players you want will slowly move on to other games who actually have enough control over their players to allow people to play the game instead of fight and argue and pray they don't get teamed up with spoiled raging 12 year olds again.
Also, did Lyte write that section about the Sandbox mode? It really seems like one of his spin/excuses. You're not going to add a mode that would let anyone test things out without a huge hassle because you think people would occasionally be assholes about it? This also says alot. You realize you can punish and remove these assholes, right? You don't have to let them play this game, and you really shouldn't.