Usually updates/modifications come with the new MY (announced in May for production starting in July), such as the iDrive 8 for the G42.
However, if I am not mistaken (but correct me if I am wrong), for the M3/4 some colors were randomly added during the year, such as Skyscraper Gray and Aventurine Red.
We'll see, for now I'm sticking with Brooklyn Grey but given the delay in production I don't rule out having the option of a MY25 color
