Pink Ward Only Item Slot/More Uses for Gold

Trinkets are a great addition to the game, they allow everyone to ward and improves the overall health of the game, but one problem that always persists in the late game phase is the inability to actively use control wards. Once in late game, most players have completed builds and have no choice but to either sell an item to use a control ward or just live without them. Problem is, they are still really viable through all stages of the match in general. It would just seem really helpful in matches to have that option to buy control wards always available. Now it may seem silly in general to sell an item to use a control ward, but they help with warding a tremendous amount. It makes sense to have a slot dedicated to control wards, kinda like a trinket slot. Control wards are very useful and its really annoying when you can't even use them once you have your item slots filled up, the more wards the better right?

Also, very late game you run into the issue of a huge amount of gold stacking up with no actual use for it, its also another annoyance that makes no sense, a lot of players just sell their boots for a 6th item or just change builds freely, while not exactly ideal, its really all that can be done at the moment. It seems like you could implement a rebuild defenses feature, so if games do run really long, it gives the game a little more interest to it, maybe spend gold to buff your minions power, or buy another item slot or even add buy-able stats in the real late game to either tilt a game one way. Maybe a buy to revive system could also come into being. All in all it adds ways to spend all that stockpiled gold in the very late game that just sits their for no reason at all. Maybe a buy to revive system could also come into being.

Do you think Riot should consider upgrades or new features like these?