Supporting this! See also the feature request for this I put in a few months ago 
EDIT: just saw that it was already linked 
Would be great to have the following abilities:
- Update the stored notetype stylings (to allow for multiple international projects to use custom cards with custom stylings without you at AnkiHub necessarily needing to add compatibility with customisation add-ons)
- Add new notetypes (e.g. IO, variations of the classic Front→Back)
- Add fields to the stored notetype (probably the least concretely relevant, but to allow for discussions with established MedEd vendors — i.e. allow them the prominence of having their own field, as AnKing has with Pathoma, B&B, First Aid, Sketchy, and so on)