Source
The icy-dragon empress Honglan who may look cold on the outside but also has a fluffy side to her will join the roster on February 16!
Check here for source.
New Soul - Erika

Type: Fairy / Class: Supporter / Stats: Intelligence / Role: Heal
You can find her skills on her profile here.
Erika's Pick-Up Summon event will start. There's a higher chance of getting Erika through the event.
Pick-up Period: March 2 after maintenance—March 15, 23:59 UTC
You may obtain Erika through any Soul-summoning methods including Normal Summon, Friendship Summon, Choice Summon, Soul's Memory (Epic), etc.
Content
Velanna True Ending Love Story Revision.
Valentines Event End.
Following Content has been teased for March 9 update
Flower Event.
Guild Raid.
Champ Arena. [3v3 PVP Content]
Catherine's and Miriam's Love Story.
Battlefront area 18.
Gates Expansion.
Guild Raid & Champ Arena
In order to provide you with a more interesting, strategic element to Guild Raids, we have newly planned out on implementing a <Treasure Card System>.
This is why we had no choice but to postpone the start of the Guild Raid: Charite from March 2 to March 9 update.
As we had noted earlier in the 2023 Q1 Roadmap (recap), Guild Raid will be a battle system where you need to use 3 teams.
The Treasure Card mentioned above is indeed the treasure cards you saw in Dimensional Labyrinth and Hall of Memories.
You can place up to 5 Souls per team and also choose 1 Treasure Card. For each team, you will be able to choose 1 treasure card for a total of 3 cards.
There are currently 15 Treasure Cards you can choose from, and the Treasure Card you choose can be a decisive factor in designing your strategy for battle.
What's more, this Treasure Card system will also be applied to the Champs Arena which will also be released with the March 9 update. As for Champs Arena, you will not be able to know which Treasure Card your opposing party has selected.
Guild Raid will progress for 1 week then have a cooltime of 3 weeks before a restart. However, as the Guild Raid boss Charite's schedule has to be changed due to the postponement, there will be 2 weeks of cooltime after the first Guild Raid (Charite) progresses from March 9, then the next Guild Raid will start on March 30.
Misc
Recommended Guild List will be improved.
Guilds that have reached max number of guild members or with maxed out guild application count will not be displayed in the recommended guild list.
Guilds where no member has logged in for 1 day or more will not be displayed in the recommended guild list.
Guilds with the Join Type of "Join Immediately" will be displayed at the top of the recommended guild list.