As you can see from the above chart Pledis has been working on a lot of activities to keep our girls busy in the upcoming months.
Confirmed release:
U-ie: Digital single: ‘속속속 soksoksok’ – - promo song for Le Coq Golf - JongHyun (종현) from After School Boys will be featured on the song
The group/sub-unit activities will most likely be conducted as follows:
AS Originals: 1st Mini Album ’Time To Click’ (가희 정아 주연 베카 레이나 나나) (Kahi, Jung Ah, JuYeon, Bekah, Raina, Nana)
Orange Caramel: 1st Album ’Sweet Caramel~♡’ 
After School: Digital Single/Mini album
Violet Girls: Digital single (리지, 이영, 예비입학생 3명) (Lizzy, E-Young, Three Pre-School Girls – Yoonjo, Yoo Ara & Kyungmin?)
The title song by AS Originals is said to be very strong and addictive. As Originals included Bekah as a member but with her ‘graduation’ she will no longer be involved.
There has been no definate word from Pledis nor a confirmed release date for any of the activities listed besides U-ie’s digital single.

Credit: AsFan + Joamusic + AS_UieFacts
Source: ASD