He is likely a liability. He is no longer needed and did what was needed.
The mysterious and timely demise of characters that were in the know of the Klinton Krime Kabal has been very lucky for the Clintons. If the trend continues....
Not likely. Having the FBI in your pocket is like having Hitler’s SS. No way they give up that asset. Besides, Comey is a grade A spook...and will have all kinds of “if I die” “life insurance” schemes set up.