It still is coming, but other priorities got in the way, MP2 for example.
Galileo support is "cool" but its not necessary since GPS does work, all Galileo does is slightly decrease GPS lock times and slightly increase the resolution of the GPS data. Because of this, its not a "killer feature" and is worked on as and when time allows around other more important aspects such as Mavic Mini, Mavic Pro 2 and NLD 2.0.
As a side note. Dont flash some random firmware that some guy on the internet tells you does something. At least with NLD, you have control over what it does and the firmware we flash is unmolested DJI stock firmware.