From a place if ignorance to what's going on behind the scenes in Korea, can only go off assumptions.
The assumption is that not many Grand updates is to be expected anymore-
Suggestion to NA Devs, request permission from Kr to make NA only changes, changes that relies on Values in game for ease of reversion.
IE: Buffing certain classes damage/ defence/ resistances etc, anything that can be easily changes by modifying values in a text file*
This way NA side can experiment with changes that might refresh the community, bring some energy back into a stagnant situation.
Ty.