Steps:

1. I created Product type - notebooks and added several attributes, 3 enabled for variants
2. I created a product based on this product type, added values for attributes and generated variants. 
3. After some time I had to update the Product type and add some extra attributes (not for variants) and disable the option “Use in variants” for some attributes.
4. I entered the same Product but in Preview in the tab: Attributes I cannot find these new Attributes. I want to see under Attributes tab new fields with empty values. Now I need to enter Edit to find them. 

1. What should happen if the user changed the set of attributes in the Product type used to generate variants and variants are already generated based on the previous set? A) generate from scratch based on a new set? B) block attributes used for variants & display warning that changes in these attributes can impact existing products and variants?