If Xehanort hands him in he will be thanked and rewarded with credits. Elidibus will find D-Force personnel at his home or place of work, and they will ask him to go in for questioning. These forces are trained to deal with people with super powers obviously, but won't be violent as long as Elidibus complies. What happens next would depend on how Elidibus reacts - but if he goes with them, he will be initially questioned.