Clubs are required to name the rider at the top of the averages in the number one position, which will now be taken by Newman, who has increased his average from 6.51 to 7.44.
Devils co-promoter Ashley Taylor said: “It could be to our advantage to have the opportunity of fitting Ryan in any position between two and five, especially if he is back to his true form.”
Fisher has had a frustrating start to the season but has been back to his base in Poland testing his bikes.
Taylor says: “Ryan is confident that he has found a solution to his problem and it will be a case of seeing what he can produce this week in the home match against his former club Peterborough. It would be good to see him hit the ground running in that one.”
The Devils take on Peterborough at home on Friday (7.15pm)
New averages: Kyle Newman 7.44, Jack Holder 7.00, Morten Risager 6.98, Ryan Fisher 6.97, Sam Simota 5.80, Ashley Morris 3.75, Sam Chapman 3.00