Change to Vision Wards

With the upcoming removal of stealth wards that was mentioned here: http://na.leagueoflegends.com/en/news/game-updates/features/preseason-2016-crests-horizon , I feel that a adjustment to vision wards should be made to compensate this major change. I believe that a good adjustment to vision wards would be to have them start out invisible and essentially function as stealth wards for the first 2 minutes of their use. But after 2 minutes, they become visible and will remain on the map until either killed or a new vision ward is placed. This change would be a great help to supports in first few minutes of the game (before they are able to buy a sightstone), because this will allow them to place a vision ward without the high risk of it immediately getting killed and wasting the 100 gold that went to buy it. I feel that change could also add a bunch of very interesting dynamics to dragon and baron control.

What does everyone think about this?