I'm not sure if this has been proposed or thought of before, I don't frequent the boards or look on them too often!
But in terms of pinging and communication, would a ping that denotes a wards position be a good idea? I.E the support/adc sees a the enemy team ward drake tribush, either player can then ping the bush that just says 'Warded!' Or something to that effect?
Far more efficient than typing and saves time in lane while helping communicate with the jungle/roaming laners.
I'd be all in favour of this, we already have cautions and on my way pings, since wards and vision are so intrinsic to the game, this could only be a benefit!