DC's only just brought Cat Grant, Ron Troupe, and Steve Lombard back from relative limbo (Cat and Ron having spent less time there than Steve). Bibbo and the Guardian are back also, but since "New Krypton" ended, we've not see the staff of the Daily Planet at all. Where would Chloe fit into that? Or should she be included in Geoff's story, reference once in a while, but not added to the regular cast?
Most of those characters you just named need to stay in limbo. Goddamn Bibbo Bibbowski.