New character - Lizbeth (5 star)
Here's Lizbeth in all her glory:

She's a Blue Tactics-type character who can buff and Barrier her allies and share the damage received with them.
Here is her skill set:
S1 - Electromagnetic Suit Cannon
Deal 53% attack + 8.5% own max health, damage to a single enemy target, and grants self a Barrier equal to 6% own max health for 1 round. If [Combat Deployment Theory] is on cooldown, [Electromagnetic Suit Cannon] deals damage to all enemy targets.
S2 - Protection Field - Passive
Damage share 12% from allies. When self is hit by an AoE attack, give a Barrier equal to 8% own max health to all allies for 2 rounds. This effect can happen once every 3 rounds.
S3 - Combat Deployment Theory - 4 turns cooldown
Grants all allies Defense Buff and Crit Resistance for 2 rounds. Grants the ally with the highest max health Attract Firepower for 1 round.
If you want to check her skill with all the important things colored, please go to her profile - Lizbeth Profile.
New character - Luscinia (4 star)
Here's Luscinia in all her glory:

She's a Green Assault-type character who can buff herself and who focuses on dealing single target damage.
Here is her skill set:
S1 - Dominating Attack
Deal 106% damage to a single enemy target and advance own action bar by 10%.
S2 - Performance Amp - 4 turns cooldown
Grant self Attack Buff and Defense Buff for 1 round, and a Barrier equal to 80% of own attack for 2 rounds.
S3 - Infrared Optics Module - 4 turns cooldown
Deal 192.9% damage to a single enemy target. If self has Attack Buff, gain Penetration for 2 rounds. If self has Defense Buff, gain Dmg Reduction for 2 rounds.
If you want to check her skill with all the important things colored, please go to her profile - Luscinia Profile.