As announced earlier in the community (but still not officially by UCP), 楓 (Kaede) and 雅 (Masa) were leaving Lamina. Now that they have left the band, Kaede and Masa have both opened up blogs, should anyone wish to continue following them.
Masa's Blog (Ameblo) Kaede's Blog (Syncl)
It seems no reason has been given for their departure. If anyone skilled enough in Japanese wants to scour through the Lamina Holiday blog to find out, I'm sure Lamina fans would be appreciative.