OP....one thing we both agree on is that nothing good shall come of all this.
I have not seen any report of their being an Internal Affairs/Professional Standards Investigation of the Officer's involvement but I would very surprised if there is not.
If the investigating officers assigned to the incident uncover sufficient independent information from Witnesses to fully satisfy themselves what actually happened and that clears the Officer of any misconduct, there might not be. If there is not, or if anything shows the Officer acted in a manner that violates the Law or Department Policy then there will be a formal investigation by a separate branch of the NYPD.
You can count on the Officer's conduct being very closely scrutinized.
His employment is at risk over this as is criminal charges should it be found he violated the law.
I have sent an email to the Reporter at the NYT who wrote the article seeking any other information he might have....and asked him some questions that would be good to have answered. No Reply from him yet.