
An idea for a unique mechanic/interaction between species.
This is something I had always hoped they would eventually add in Guild Wars 2, especially since they were able to accomplish having a two person mount (turtle!).
The idea is simple, but may be easy/hard/impossible to implement (I am not a programmer so I am not versed in how this could or would be coded). I think it would be the neatest thing if Asura players could ride on the shoulder(s) of the Kodan players! The only MMORPG I have seen such an idea actually implemented was Mabinogi. In that game, small human/elf players were able to ride on the shoulders of the Giant race players. It was such a fun mechanic! Now granted, it was purely a "just for funsies" mechanic, but it was just so unique it always stuck with me.
Now onto the next thing people may be thinking: can this be abused? Well, in Mabinogi, from what I remember, the Giants/Elves/Humans had to send a request to the other party to be picked up and carried. You couldn't just walk up to someone as a Giant and pick them up and take off with them. Either party could deny the request and then the pick up would not happen. I believe there was also an option where you could set yourself to never receive requests to be picked up so if you weren't comfortable with the idea or didn't want to receive spam invites, you could turn the setting off completely and nobody could send you invites to be picked up. It was the same for Giants so if you were not interested in ever carrying someone, the setting could be turned off completely so nobody could spam you with requests to be carried. Also, the person being carried had the option to dismount at any point so once you were picked up, you couldn't be "kidnapped"; you could get down and go your own way at any point in time.
Now onto, "Can this be abused to level up two accounts at the same time?" No, in Mabinogi, if you were carrying someone or you were being carried by someone, you could not fight or engage in any kind of combat. This prevented people from AFK farming or dual account farming. If you were attacked by enemies, you had to split up before you could start fighting.
Again, this would just be a cool, unique "flavor" mechanic. As a side benefit, it could potentially encourage more players to play Kodan/Asura.
Here is the mechanic in action in Mabinogi (player names and speech bubbles blacked out):