Micro-liposuction to the Face After Fat Transfer?

As several of the other surgeons have pointed out, it is best to wait until you see the final result.
If problems still persist after sufficient time has passed and things have stabilized (typically 6 months or more), it is time to consider a revision.
In my experience, fat injection material is fibrous and tough, and does not respond well to liposuction. Rather, it is best removed directly by literally cutting it out.
If liposuction is attempted around tough fat grafts, the native fat is more likely to be removed, leaving the problem, and adding a second problem, a deficit of normal tissue next to the objectionable fat graft.
These are all considerations to weigh when getting fat injection in the first place.

It sounds like you are pleased with the grafts that have been placed and are looking to thin out areas where there may be too much fat. I would not disturb the newly placed grafts for a few months. Also, you may need a touch up procedure where the fat grafts are placed and it would be wiser to perform both the micro-liposuction and the fat grafting at the same time.

 It depends on whether a facelift was done at the same time or not. If not the time could be somewhat shorter. Yes, the fat next to the grafted area might be disturbed. That is why it is important to choose your surgeon wisely.