So I have read through this entire topic and figured that I could put my two sense in.
Do I want a Wyvern? No, and here is why.
-I enjoyed my Dragoon when I played Final Fantasy XI, but this isn't XI.
-The lore treats the Dragoons as having an affiliation with the dragons a bit like jedi powers. It's like having a light and a dark side. Proximity to Dragons, Wyverns, Drakes and other similar creatures corrupts the Dragoon, who is in a constant war with the power within them to control and harness this ability to destroy Dragons.
-The Devs made it very clear that if we got a wyvern we were going to get another...ANOTHER hit to our abilities and strength balance for it and the first one was severely disappointing (even though Dragoon IS still my favorite class).
-I like being underestimated now, and with proper execution can be one of the most efficient DD's on any of the Ifrit run teams I have been on with basic AF armor, it's not the skills now, it's how they are used. Dragoon IS balanced now, it just takes smarts and practice to use efficiently. I don't want to have to have the balance ripped away now that we are for the sake of nostalgia or lore breaking.

Now those points being made, I want to stress, I liked Dragoon in XI...I even liked the feeling of the Wyvern with me. I'd like to feel there is a nice middle ground (perhaps a separate class that is not a dragoon that is devoted to protecting Dragons? or a lore spike that follows what happens to the Dragoons that are corrupted by Dragon influence and having a separate job for it, but all new skills), though I fear that the middle grounds could be fraught with potential issues as well.
Either way, I wanted to take a moment and make my first post about my two sense concerning the Wyvern.