I main DNC. If we are going for what we would want for the jobs and not what we expect then... I want them to stop "fixing" jobs in their next 10 level gap and fix them where they need it. For example I don't want a trait in the lvl 81 - 90 range that makes it so Improvisation only requires 1 person or 0 people for max Espirt. I want them to fix it at the level when we get it. They did this for DRG with Jump and High Jump. Instead of making Jump as fast as High Jump they just made it a new move and added more damage.
I think they also need to stop with the AoE move and then a Single Target version system they have. Just make the move divide it's damage between all the mobs it hits so that it can deal massive damage to a single target and AoE damage to multiple targets. Example would be Flare. Instead of making a new move Despair they could have made Flare do what Despair does unless it hits multiple targets. If it does it does the damage Flare does now. Maybe this kills the "look I got a new flashy move" feeling but at the same time the "new move" is just a single target version of what you already had.
As for what I want from my main I'm not sure. I don't play it cause it's a support job I play it cause I love Chakrams. I would want the Improvisation fix I listed above and Saber Dance to do single target damage if it only hits one person. Beyond that I'm not sure what I would want for it. I don't want more support skills. I do think Closed Position needs to be at a lower level and not need two button presses to be able to change between targets. Maybe make our buffs hit the party no matter weather they are in range or not.
I think they need to turn BRD into a RNG and make BRD a type of Caster / Buffer class. Where your songs have cast times and they either buff the party or deal damage to the mob, or both like DNC. But this will never happen.