刚才看到一个RFE under review的,USCIS的说明部分:
You should expect to receive a written decision or written update within 60
days of the date we received your response unless fingerprint processing or
an interview are standard parts of case processing and have not yet been
completed, in which case you can use the processing time information on our
website to estimate when this case will be done.
看来,楼上是正确的!