assuming he only gets prosecuted for speeding.
either
1) a 14 - 56 day ban ( cannot be more than 56 days purely for speeding )
or
2) 6 or more points if he can proove that he needs his license for work - ideally a written statement from his boss to produce in court that he will be sacked without his licensse.
Theres no hard and fast rule, as 25mpph over the limit or above you CAN be referred to the magistrate but its not guaranteed. Think its pretty certain for doing 65 in a 30. You can be referred for doing 50 in a 30 (ie 20 over the limit) which is the one speed limit there is an exception to.
as for ban or points ? thats up to him if he can proove he needs his license, otherwise most likely a 28 day ban.
I was caught doing 107 on the M1 and get 28 day (or more) and £70 fine. Any qs just shout.
Magistrates should take account of the time of day, the day and traffic conditions when considering how dangerous the offence was.