What do you want to bet that they will hem and haw and say it is just too important to national security and can't be released?
They very well may be able to make a case that to release the information in the memo, would severely damage the credibility of the United States and cause catastrophe shake ups in our DOJ and FBI resulting in required reviews of thousands of investigations and prosecutions by the identified criminals operating at high levels in those agencies. They schemed against the President of the United States, imagine what they did to others who are now sitting in prisons based upon illegal activities by those who investigated and prosecuted them.
Soooo, they release it and start draining the swamp or they file it away and quietly let those involved retire or shift them to an office without a phone for the good of the country.