Instead of Legend of Korra as the sequel to last airbender how about this and what are your own thoughts?

Now i'm a huge fan of Avatar so I watch LoK anyway but personally I hate when they kill off all the main characters and just drop some new ones in. My thought for a Sequel show would be this. Have the characters from the previous show as either young adults or in their late teens and still follow Aang and friends. Find out what really happened to Zuko's mother. Have some Hook-ups with Toph or Ty Lee and other characters. Have the fight scenes be great introduce some sort of new foe. I could go on and on and on But it just seems like a bummer that ok they're starting with new characters. I know Aang's voice actor is probably in his late teens so they could use him for something but hey just my opinion