We're told Katherine has frequently visited the temporary resting place.
As for where the body is eventually going ... no decision yet. We're told Jermaine is the lone family member who wants Neverland as Michael's final resting place. The rest of the family is appalled by Jermaine's wish, because M.J. hated Neverland after the molestation trial and wanted nothing to do with it.
Increasingly, Jermaine is becoming estranged from the rest of the Jackson brood.