Sightstone upgrade

with the way they have made basic items able to upgrade into 1 of 2 different items. I feel they could also do this for sightstone, by adding another upgrade feature for, besides adding more health for the upgrade a different way to go would be to make a different upgrade feature where it changes the wards into "pinks" since there are a wide variety of champions. that have stealth features making normal warding pointless and impossible to counter without vision from a pink ward, like vayne tumble in her R form, Talon when he ults,wukong when he W, evelyn passive,rengar ult, kha'zix ult many of which abuse there stealth features to either escape or to engage. not trying to make another op item like Bork just trying to think of ways to add more items to the game. Since the game has been so overly simplified with the way item builds work, cause it seems people just keep building the same items every game without changing up the item sets they use, For what i have seen as of lately.