I suspect they'll be patching this one, but I don't know if they have updated the ME firmware in the past.
However, Intel's own platform tools (MEInfo and MEManuf running in a UEFI shell) can't even communicate with the ME on my 2015 Macbook Pro, so I would be quite interested to know what exactly they have done differently with regard to configuring the platform.
People have been archiving every version of the ME firmware for each chipset, and it would appear there are some versions that may be specific to Apple hardware. I'm not sure what is different, if anything, but you can see (and download) the particular firmware versions here: https://www.win-raid.com/t596f39-Intel-Management-Engine-Dri...