Thankfully, none of the original members will be leaving the group. Two new members will be joining the 7-member group, bopping the group count up to 9. The new members are Taemin and Sangwon, a 95'er and a 97'er respectively.
Both Taemin and Sangwon had been featured in Davichi's MV for "Turtle". They're reported as 'project members' so their place in the group may or may not be temporary.
Source: Star News