Quote Originally Posted by JonFarron View Post
They've already confirmed during the beta that Musketeer (Gun class) would be the next class, along with Samurai I believe. (I know Musketeer for sure)
Samurai has not been confirmed in any capacity. Musketeer was confirmed ages ago (Yoshi said that the promise of Musketeer since 1.0 release means he feels obligated to implement it), but it's not necessarily next.

Ninja, Samurai, Dark Knight, and Red Mage have all been specifically mentioned as common suggestions or possibilities. None are confirmed.

As for new healers, I personally would like to see a White Monk job from PGL, a potion-based healer/debuffer (e.g. Treasure Hunter -> Chemist, Thief), and a proactive healer/buffer (e.g. Acolye -> Oracle, Sage).