Riot, PLEASE, give the trinkets some form of stealth detection once again
Make another variant of the red trinket such that it can detect stealthed enemy Champions, but not traps or wards. There, big power loss in exchange for a hard-counter to that fucking Shaco, Rengar, or Twitch.
Also, to sweeten it, make it so that the enemy stealth has to be close to you at the time of activation to be affected (ala Dust of Appearance). There, they can fake approaching you, make you blow that trinket too early, and then you waste it.