Granblue EN (Unofficial)さんのイラストまとめ

(We feel it necessary to pause the translation for a second and note EX classes with skill flexibility sounds awesome.)

"At Granblue Fes, we unveiled the Black Cat Mage (AKA Nekomancer), which is based on the Mystic class."

Ippatsu (Fire SR)
Type: Special
Race: Human
Specialty: Melee
Support skill: Debuff resistance up

Therese (Fire SSR)
Type: Attack
Race: Human
Specialty: Sword
Support skill: Dodge up as HP goes down

This year, he's tipping his hand on:
-Feather and Randall
-Narmaya and Eahta (Octo)
-Sevilbarra and that creepy dude from his fate episode whose name we can't remember
-the Three Sisters (most likely Camieux, Cucouroux, Silva but possibly Sutera/Metera/Aster)
-Nezahualpilli

As previously announced at Granblue Fantasy Fes (you'll hear that a lot this update), the kuroneko doushi (nekomancer?) from Knights of Glory is in the works as part of the EX II update.

As new info, they will be releasing a second class at the same time as this one!

Pandemonium level 5, and with it the next stage of class champion weapons, has been 4 years in the making and will be here soon. The class champion weapons are going to use a process similar to the Ultima weapons for the next step.

And, finally, Karva is getting an upgrade to SR, months after her anime appearance!

Vaseraga:
Earth attack SSR
Skill 1: Massive buff (uses 100% meter)
Skill 2: Gain attack based on missing HP/boost to meter gain
Skill 3: Boost allies' meter
CA: Dmg, buff next skill 2
Support: During skill 1, immune to debuffs/attacks aoe/atk up/hostility up/reduce dmg taken

Olivia's skillset appears to be unchanged from the trial version, with a CA-sealing debuff, slow (double slow after CA), and TA/crit.