Oh yeah at the end there they turn into fans
Only for a few key skills though.
Just like XI, they gave Dancer Saber Dance(damage stance), although in XIV it's now a damage buff that also applies to your partner and Fan Dance(tank stance), which again is different than XI, not even a stance or buff anymore, it's just an oGCD(or low cd GCD it's unclear at the moment, it has a 1s GCD like steps).
You generate charges randomly off your procs procing(so yeah double level of RNG), the little green feather icons, and then you can dump them for damage really quickly with cool animations, and apparently these can proc into a stronger version too.
DNC is like several layers of procs, which I think is interesting but might end up a bit weird where sometimes you don't proc shit for a while(there is a cooldown to proc the first tier on every skill and I assume something will give those green counters via cooldowns too but we'll see).
You have the 2 basic attacks, 50% chance each of them can unlock a proc stronger version, then 50% off these to proc a fan dance counter, then 50% off fan dance to proc a stronger fan dance. Stacking the procs for burst phases should prove to be fairly interesting though, similar to current MCH stacking the special shots for Wildfire, but without the ridiculous Wildfire window.