The "in whatever order we like" part is, what let me think on the monk. Where you can easily switch between St and aoe attacks.
But, by reread your Post did it looks more like the caster typ play or the story chara play (the "all together in the dive skill ... (dive4x × thrust)" part, you practicly press the same skill 4 times and than a other one, what is the playstil of the blm -that i would liked to change into a 1,2,3/4 combo to- ). And i mixed it with the jump part, that it looked for me like: "jump, thrust. Jump, drive. Jump surge". Practicly a 3 times 2 hit combo. Similary to the samurai. What i didnt like much.

That the jump skill becomes mp bounded would be something, that is simply differently. And could be a option, as long as the jump isnt the main attack form (the paladin and dark knight has a similary thing). But dont know, how much i like it. What i can not image is the phase after the jump.
Where is the chara after jump, but, before you use the following skill (like ssd)? Is he standing in the air? Is he allready on the ground? Is he vanished from the monitor and can not be seen? For a normal rpg could it work. But for a Action game or mmo is this phase questionable for me.

Like i allready sayed, did i not think, that they will change the dragoon as much as the summoner (at last did i hope that). It will probally be similary to the monk. And the big change is probally compaired to the shb Version (didnt he had a gauge at that time?).

What i think, i would change is:
The jump skill, like i sayed.
Reduce the combo back to a 4 hit skill. Where maybe the 4. Skill make the highest dmg. And not heavens thrust.
Maybe remove disembowel and Chaos thrust (not likely, they stranged it in ew), for making room for 2 New skills. They would remove a dot skill and a skill that mostly only increase dmg. And it remove a full attack rotation.
Wheeling thrust (that is the skill connected to Chaos thrust, or?) could be changed to a aoe skill and becomes a 4. attack for the aoe rotation.
The jump skills could become a new rotation and take the place of the rotation, i removed.

The dragon eye skill can be keep. But Geis and Nast could be connected. But ones becomes a ST attack and the other could be keep as a Aoe attack. Both moves looks similary (one critic to the drg, half of the attacks looks very similary).
Similary for stardive and Wyrmwind, who both could have a St attack version to.
It would be similary to the samurai or Blm, who has the concept of pairs of St and Aoe attacks. And that could be nice for the dragoon (reaper has similary concepts for the normal attacks, but is missing ST finisher to). By the other hand. All this skills have allready high potency, who are becoming weaker at the second target. Its questionable, if St attacks are than needed to.