Norms is one option we're lacking in particular.
There may be others, see Search 5's org.hibernate.search.annotations.Field and org.hibernate.search.annotations.NumericField annotations.
See org.hibernate.search.engine.backend.types.dsl.StandardIndexFieldTypeContext, org.hibernate.search.engine.backend.types.dsl.StringIndexFieldTypeContext,org.hibernate.search.mapper.pojo.mapping.definition.annotation.GenericField,
indexNullAs has its own ticket: HSEARCH-3099
analyzer and normalizer were already restored, but only for some field types. That was on purpose and should not change.
store has been renamed to projectable
boost will be removed in Search 6
termVector may be deprecated in Lucene and if so we should remove it
bridge is now valueBridge
analyze must not be restored: it's only useful if we add support for "scoped" analyzer mapping (setting a default analyzer, assigning an analyzer to a type, assigning an analyzer to a property, ...), which we decided not to allow.
Let's discuss the options to restore before restoring them.
Handle `doc_values` in a different issue. We need to think about it.