Source
You can find the original post with the roadmap here.
Roadmap
Normal Soul (Pick-Up)
1. Pick-Up Summon - Catherine
Period: 9 March 2023 (Thu) After maintenance ~ 23 March (Thu) Until 07:59 (UTC+8)
Details: A high chance of getting Catherine in <Pick-Up Summon> during the event period.
2. Pick-Up Summon - Miriam
Period: 30 March 2023 (Thu) 09:00 ~ 13 April (Thu) Until 07:59 (UTC+8)
Details: A high chance of getting Miriam in <Pick-Up Summon> during the event period.
New Soul (Pick-Up)
1. Pick-Up Summon - Erika
Period: 2 March, 2023 (Thu) After maintenance ~ 16 March (Thu) Until 07:59 (UTC+8)
Details: A high chance of getting New Soul 'Erika' in <Pick-Up Summon> during the event period.
2. Pick-Up Summon - Aki
Period: 16 March, 2023 (Thu) (Thu) 09:00 ~ 30 March (Thu) Until 07:59 (UTC+8)
Details: A high chance of getting New Soul 'Aki' in <Pick-Up Summon> during the event period.
Main Event
[Flower Event] Spring Blooming in your Heart.
Period: March 9 2023 (Thu) After maintenance ~ Mar 30 (Thu) Until 07:59 (UTC+8).
Overall while the patch notes don't mention we are pretty sure that the shop will have Haru and Clara dupes just like the previous events had Chloe and Naiah etc.
New Content
Guild Raid (Charite) March 9 ~ March 15.
Guild Raid (Gaiah) March 30 - April 5.
Champs Arena Open permanently from March 9.
2x Champs Arena Win rewards March 9 - March 21.
2x Dual Gate rewards March 22 - April 4.
