I am very pleased to hear the news!
I have given future CMF some thought and come up with enough viable characters for 2 more series... I won’t spam this thread with the full list but my preferred ‘series 2’ includes a lot of creature characters/moulds.
CMF exclusives:
Kreacher: new head. Has the locket and perhaps the Black family tree printed on a large tile.
Werewolf Lupin; uses faun legs, new head mould, and the accessory is Sirius Black’s Dog form
Grindylow: new head and tentacle legs. Allows a ‘Lake Task’ set to spend its budget on the human characters etc
Patronus Otter; accessory to a OoTF Hermione. If Lego was clever this animal mould could also be recoloured into a blonde ferret for a GoF Malfoy ;)
CMF’s which subsidise the cost of a new mould used in other sets:
Merperson: new moulds for the hair and tail.
Griphook: new head mould, which can be printed differently for other goblins. A lantern and key are simple but appropriate accessories.