CMST New Client include the KMST ~ Ulimited New BOSS?

you're implying that it's CMST exclusive

EMS has a modified kaiser, CMS has our luminous

I bet we're getting that AB change as well, and we're also getting EMS's kaiser.

This exactly. Given Nexon's reply on the Luminous change my money's on all of these changes applying to Kaiser and Angelic Burster and it makes sense because lots of KMS people did not seem to be fond of AB. A pre-emptive move to make classes more balanced before the patch that's supposed to nerf them, possibly?