رَجُلٌ جَاءَنِي
A man came to me.
The analysis also considers an indefinite fronted subject. If the hearer is mistaken about the visitor's category, fronting rajul may correct the sex/category in question. If the hearer's error concerns the number of visitors, it may draw attention to one individual.
Indefiniteness therefore does not rule out rhetorical prominence. But a fronted indefinite noun does not carry one fixed restrictive meaning in every setting.