The level of detail to FFXI and it's mechanics is above and beyond as we all know, trust me, theres no lack of appreaciation there. Just saying the lack of detail to the Dragoons job, to the pet wyvern specifically, seems lacking. It gives no honor to the idea of owning a dragon.

Similar to the Wyvern family in abilitites/size, chocobo's in color/raising options and using elemental basics in the growth of your pet.

As a level 90 Dragoon, it would of been nice to exit San d'Oria, call forth my Blue Wyvern of ice, mount my pet for riding to get to Abyssea - La Theine (low level flying even, so we can still pop off mid air flips while mounted). During battle I would use Wind Wall for my parties evasion boost, Dispeling Wind to debuff the defending mob, Fang Rush for a physical WS followed by a Blizzard Breath with a magic burst on ws chains. Maybe even a Radiant Breath as some form of Level Specific quest, even Blue Mages have that one!

In so doing, we would have a more diverse job class in dragoons with elemental based specific wyverns, another class of mounts to ride, character/pet lancing abilities (assuming that lancer was the direction origanally intended for the job). And heck, lets go all the way, use equiptment and armor on our wyverns implementing the Puppet Masters current system! (I'd still like to see armor'd chocobos for our rides as well)

Granted, the Job may become the too cool, out shining all the other jobs, but all the mechanics is there already spread thru the game!