However, Gills boss Martin Allen is hopeful the midfielder will agree to extend the deal and return to the Priestfield Stadium.
Wright has been an ever-present in the Gills team since moving to Kent, playing seven matches for the npower League Two pacesetters.
Allen told Kent Online: "He is back at Crystal Palace now and the chairman and Andy Hessenthaler will be chatting and working out to see if we can come to something.
"We would like him to come back, obviously. If we don't get him to come back that's not a problem. We will get on with it."