They just pushed out a pretty huge update. From what I can see:

Japan Livestream Rewards

Thanks to a challenge completed on a Japanese King's Knight livestream, all players will get the following items:

• King's Blade x1 (free 5* sword)
• Arcane Hourglass X x3
• Orbs (all elements) x100
• Noble Orbs (all elements) x50
• Royal Orbs (all elements) x20

New Coop Stages

A new co-op stage has been added for the Smith & Steel event. They are currently Veteran (D80) and Master (D120) difficulty. The boss for these two stages is Twin Tortoise.

Furthermore, the previous coop stages are now placed into a daily rotation.

• Sunday: Nameless Plain, City of Remorse
• Monday: Blazing Peak, City of Remorse
• Tuesday: Nameless Plain, Permafrost
• Wednesday: Blazing Peak, Permafrost
• Thursday: Nameless Plain, City of Remorse
• Friday: Nameless Plain, Blazing Peaks, Permafrost
• Saturday: Blazing Peaks, City of Remorse, Permafrost

New Event: The Sword and the Flower

The two knight orders of Olthea, The Palace Knights and The Royal Guard.

Both are sworn to protect king and country, but dissention between the orders has been prevalent for generations. The leaders of the two orders, Ser Lancelowe and Knight Commander Shapur, seek to resolve the long-standing animosity, but have thus far failed to find an effective solution...

How to Play

Play through the event and collect Camelot Roses.

Camelot Roses can be collected by opening treasure chests or defeating enemies.

Camelot Roses can be taken to the Limited-Time Exchange and traded in for other items.

Event ends: 6:59AM 18 October 2017 (GMT)

New Characters: The Blessed Ones

Five new characters have been added to the Character Spin.

Lancelowe

Element: Fire

Class: Warrior

[Circle of Detonation]

2-hit, 230% power AoE attack x5 attacks. Normal shot of a single ally changed to explosive shot for 10 seconds.

Heysen

Element: Light

Class: Wizard

[Lightning Eclipse]

2-hit, 210% power AoE attack x5 attacks. Removes detrimental effects of all allies.

Vita

Element: Water

Class: Monk

[Maelstrom]

6-hit, 230% power proximity attack. Increases ATK of all allies by 50% for 10 seconds.

Zachariah

Element: Earth

Class: Thief

[Piercing Fang] 6-hit, 230% power proximity attack. Increases all parameters of a single ally by 50% for 10 seconds.

Morse

Element: Dark

Class: Gigant

[Gravity Well]

2-hit, 240% power all-target attack (only affects enemies). Normal shot of a single ally changed to drain shot for 10 seconds.

Other Changes

• Falling into the Abyss no longer incapacitates your character, it simply drops their HP to 1.
• The power of "United Might" (co-op 4 man formation limit break thingy) has been greatly increased.
• A "Rankings" button has been added to the quest selection screen.
• An "Events" button has been added to the home screen.
• In Co-op, stamps can now be sent after the enemy boss has been defeated.
• Fixed an issue in Co-op quests where the time limit until a room is closed was shortened.
• Fixed an issue in Daily Missions where missions could be completed without fully reaching the objective number.