University officials made the announcement in a release Tuesday.
Preston, who took a leave of absence for health and personal reasons Jan. 2, has missed the last seven games and will miss at least 16 games overall.
It could be more if the Owls, who are 1-6 under interim coach Jimmy Lallathin, should make the Atlantic Sun conference tournament. Currently they are 4-18 overall and 1-8 in A-Sun play. They are three games behind Stetson, Northern Kentucky and Jacksonville for the eighth and final seed for the conference tournament.
Kennesaw State athletic director Vaughn Williams has said he had intended on meeting with Preston for the last two weeks, but the meeting had been postponed at least twice.
It’s unclear if a meeting ever took place prior to Tuesday’s announcement.
Though Kennesaw State has a 10-73 record, which includes a 3-42 mark in conference play, under Preston’s care, Williams said he fully expects the coach to return to his post in early March.
“I feel that it is in the best interest of Kennesaw State men’s basketball that Lewis returns to coaching the team at the conclusion of this season,” Williams said in the release. “I have the utmost confidence in this program, and that the current student-athletes, assistant coaches and coach Preston will take this program in the right direction.”
Requests to Williams seeking additional comment were not returned Tuesday.