@Ola-Bergman Very likely it will never come, because Magix doesn't develop Software for Mac and it looks like they don't have interest in doing so in the future. Have you tried the Windows trial version of Sound Forge with software like Wine?
As @SP. says, it is highly unlikely that there will ever be a version of SF for MAC that will run on any recent version of MAC OS. Please read this pinned post for the official answer from Magix staff.