In Game Voice Chat
Seeing how recently the game is becoming way more team oriented then it ever was, with the weaker towers, the importance of the new dragons, the Rift Herald, even the nerfs to the QSS making ADC's have to relay more on their team for peel to be able to dish out damage, I believe dynamic queue players currently hold too big of an advantage to solo players because of the communication via third party programs. While I do understand how access to in game voice chat to every player could cause some issues with the more toxic players, perhaps that could be mitigated with a mute option and some sort of voice chat restriction to players who have been reported for harassment repeatedly (example: only able to use the voice chat command for about 10 seconds every few minutes to be able to give only game relevant information - aka something like the chat restriction that currently exists). I would at least like to see this be tested on the PBE server, and if it doesn't seem to be working out maybe try it only in higher ELOs where team communication really does mean all that much more.
Thanks to anyone who took time out of their day to read this, this was just me throwing in my two cents on the topic, see you guys on the Rift and have a wonderful day !
[slayer-jinx-catface]