Nikon filed a patent application (US20180095275) in 2016 for some kind of an image stabilization system designed only for the lens array (other IS systems stabilize the entire sensor):
“An image-capturing device includes: a micro-lens array in which a plurality of micro-lenses are arranged in a two dimensional configuration; an image sensor that comprises a plurality of pixel groups each comprising a plurality of pixels, and that receives light with each of the pixel groups that has passed through a respective micro-lens of the micro-lens array; and a drive unit that changes a positional relationship of the image sensor and the micro-lens array to prevent blurring of an image captured by the pixel groups.”
Nikon patent US9942485 is for creating trailing motion blur without the use of flash:
