Whether or not there are criminal charges, reform will take place. These evil people and their evil deeds will be exposed and the public will be educated. They may still Scurry back under the Rocks they came from but they will have been exposed.
I would agree that reform and some government cleanup will take place, assuming Trump is re-elected *and* the GOP retakes the House (anyone else think the GOP may well shoot themselves in the foot again in 2020?).
This is a much more likely scenario than any important deep stater being charged and convicted of any crimes.