List of Desperately Needed Things

• Solo-only queue
• Replays
• Sandbox mode
• Dedicated intraregional low-ping servers for larger regions, mainly NA. There's already EUW and EUNE, and CN has something like 27 servers (hosted by Garena, not Riot). No reason not to have USW and USE, maybe even keep the current USC server.
• New client
• Anti-cheat and anti-script measures (mainly a KR problem, but it probably pays to pay attention the world's best region, especially if the problem persists at the highest levels of non-competitive play)

The year is 2016. League of Legends has been around since 2009. There is literally no reason to not have already had all of these things 1-3 years ago. All of these things have been accomplished and implemented by almost every single other competitive game, many of which have lesser budgets, significantly less manpower, and other games to manage (surprise, Riot Games only makes one single lonely Game).

Anyone who tries to bullshit excuses for why Riot can't accomplish these things is a) denying themselves a better game and experience, and b) buying into all the Red Post political pussyfooting. Only reason I can think of for someone not wanting a better game is that they haven't really played or been exposed to anything outside of League, and think League is just fine.