I'm a healer at heart but I have Dragoon to the side
Here is my two cents.

All jumps should get 25-50 potency added to it.

Elusive jump doesn't feel "elusive". For starters all jumps minus the standard jump got a time reduction. Why not Elusive jump? What would be so broken about it? Decrease time from 180 to 90-120. Secondly, remove the enmity reduction and give the ability to elude ground based AOE's that are avoidable ( anything that has a ground marker like Landslide, Acid rain etc).

If they do this dragoons wont have to worry ALL THE TIME about jumping at the wrong time and getting destroyed buy avoidable aoe's because most of them are magic based. Just use elusive jump and you're SAFE

I'm half on half about this next topic. I personally don't think they need it but they are the only class in the game that doesn't have one and BLM too. A utility buff that benefits EVERYONE, this will be up in the air for discussion. I say 15 second buff that increases critical hit.