I have an idea for stealth

I have an idea for stealth now, gonna use Akali's shroud for an example. Basically movement commands done in stealth show a small red outline similar to the red sweeper to where the champion is going to go but not where they are, however this does not include movement abilities so if akali were to move somewhere in the stealth they would know where shes going to go, however she can cancel it with her ultimate and jump prematurley revealing her before being stealthed again. In the case of something like Rengar and his ultimate you would not see the outline unless you would normally have vision of him before it would be revealed. Another idea in case this does not work out would probably be voice ques, like you can hear their movement quotes when they are in stealth and would normally be in an area where you could see them if they were not stealthed.