“I cant say I really ship Dislestia. Theres too little fuel, personally. Maybe its cause Discord strikes me as too detached. On the other hand, I always have fun designing new characters and mixing and matching existing features. So heres a thing.
 
Hes called Dementia.
 
Im thinking hes very much his fathers son. Problems gonna be not to make him too much like his father. Or too villainous. With Celestia as his mother after all
 
The question is where, how and when he appears anyway.
 
Im thinking hell be the most fun to play off the main 6 as they currently are. Maybe a time travel thing? And hell just smile and knowingly nod to himself as he pranks various ponies together with Discord. Yes, that might be fun.
 
And then he parts ways with the words You take good care of mother now. Bam.”