Well I kinda expected the Thief/Ninja addition after completing the 2.2 story... Those Green Bandana guys and the fact that Yugiri is dressed in purple oriental-styled garments was too obvious (if you played FFTA).
I'm not sure what to expect from the gunner though - at this moment, it's portrayed as a badass dpser, I'd expect something like a magic-infused gunner like the first boss of Pharos, shooting concentrated ether for lasers and all sorts of bullets. Most likely the counterpart to the heavily support oriented Bard, focusing on higher DPS and offensive buffs/debuffs. COULD be Gun Mage-esque to incorporate the "Soul of the Blue Mage" as the Job to Gunner. Also think that the gunner will be inspired by Fusilier/Flintlock form FFTA.

About the BLM buff... do they really need to outclass SMN more? =_= not ranting but people already pick the BLM over the SMN due to the bad dps stigma...
inb4 they make BLM boss destroyers AND AoE kings...

I'm really excited about the Egi rebalancing, it's sad to see Ifrit collecting dust all the time - he really has to empower our spells with a faith buff to the SMN OR empowering dots instead of extending them like Garuda. That'd mean that Ifrit will be good for bursty phases, Dungeons and shorter fights while Garuda still is there for longer, dodge heavy, more important fights like coils.
I can see Titan getting a Fighter stance to make him useful outside soloing.
Also very excited to see Levi and Ramuh coming. I knew they'd keep Shiva as the strongest/last out of the six.