Why not make Dragon Trainer Malzahar for mid and his voidlings are dragons then Dragon Trainer Kindred and Lamb is the trainer and Wolf is a dragon, then complete it top lane with Dragon Master Swain.
If they are going to make more Dragon Trainer skins, then they'll likely follow a specific theme...Which, so far, the most likely theme would be Yordles training dragons. But even then, Rumble is the only Yordle champion who comes to mind that would fit for the theme.
Dracarys.
Dragon trainer azir. His soldiers are dragons doing circus tricks like balancing on balls, hand stands, etc.
Plus for realz. Dragon trainer Quinn way higher on the list.
Dragon Trainer Quinn doe.
Dragon Master 
. enuf said
http://forums.na.leagueoflegends.com/board/showthread.php?t=1158089
Dragon trainer fizz
I feel like Dragon Trainer Syndra could work, if done well.
Q- Summons an Egg R- All Eggs hatch and Dragons Fly towards target
Syndra could have baby drags fly around her.
Dragonswarm Fiddlesticks. Instead of crows, all of them are small, but deadly dragons. Imagine the Dragonstorm.
dragon master jarvan? get it?.. geeeeet ittt?
If hiemie is a yordle the his turrets could be baby dragons, his bomb a dragons egg, and his rockets fire breath or something. And his cult turret is a grown drag, and so on and so forth.
Why not Dragon-trainer Katarina?
i want another shirtless braum skin that isn't his normal skin!
this is my special tear
