for items that i'd like to see on next marble are :
~Ghost Costume (H)/HTBS
~Japan Madelin Costume HTBS
~Japan Madelin/Elim/Lime Costume Advance
~Rymos' Wings
~Pagan's Wings
~Chinese Talisman
~Winter Sonata Costume HTBS
also useful items like :
~Magical Crystal Manual with it's material
~Cash voucher
~Shiltz's blessing
~Rascal rabbit potions
~Battle Pet XG equipment Chest and Leg
and it will be better if there are some new items as well.