When I think dancer, I think of the Final Fantasy Tactics job.

How epic would it be to have a healer that is based around debuffing enemies in a meaningful way? Also EXTENDING debuffs set by other classes and themselves?
I'd totally get behind that.

I'd really love it if they scaled the healing off of an attack stat and slotted them with the Ninja gear-sets as well; assuming they are healers.

I main AST and I think it's the most perfect thing you can ever play (regardless of mechanical power, the class fantasy is the BEST of any video game I've yet to experience) so even if DNC isn't a healer or doesn't do much differently, playing it will be on the back burner anyhoo.