Speaking to the Official Club Website this afternoon Royle confirmed: "There will be movement, there has to be movement but sometimes change is good for a team.
"There will be changes, that is for sure and over the next 48 hours I will be in a better position to see what lies ahead.
"We can't wait around all summer to find out. We are not talking about giving players ultimatums but certainly I will say to the players please let me know as soon as possible what they intend to do.
"The worst thing that can happen to a manager is wait until the end of the summer before losing a player or not getting them and then finding their replacement has gone. We need early action."
Darren Bent earlier today expressed his desire to leave the club, and out of the players out of contract next month, Shefki Kuqi is said to be interesting a number of clubs whilst Tommy Miller looks increasingly likely to join Sunderland in the Summer after putting his house up for sale.