Is Mamamoo having a comeback ?

I'm seeing photo teasers on their Instagram page etc..but it doesn't seems like the company is promoting this comeback or is just a present for their fans ? I do understand what's going on

Quote from omnimorphism

It's a best songs compilation with 2 new songs

Quote from citron-icy

It's an best of album with 2 new song like Omni sayed.

For comeback we except to have a Hwasa solo album coming before the end of the year.

Oh ok thanks now i understand better i thought they were having a comeback without proper promotions