SERJ TANKIAN - Making New Music For System Of A Down Album?

Serj Tankian, frontman of System Of A Down, posted a picture on his Instagram account with following words under the picture of him in the recording studio.

"A weekend of mixing. Mixing coffee to finalize the perfect blend for @kavatcoffee espresso blend and mixing some rock songs for a future release. #mixingcoffeeandmusic"

We all know that he has also his solo thing, but could be this a new music for finnaly new album for System Of A Down, time will tell.