The article discusses the status of eu citizenship which has been proclaimed to be a ‘fundamental status’ in eu law. The hypothesis is that this allows the eu to re-investigate its approach in treating eu citizens who might not availed themselves to explore free movement rights. In this context the application to ‘purely internal situations’ is examined along with invocation of fundamental rights according to Articles 18, 20 and 21 tfeu. Furthermore, the article focuses on instances of cases in which ‘systemic violations of substance of eu citizens rights’ have occurred. In this context the possibilities for the eu to introduce systemic monitoring of fundamental rights is analysed. The approach to eu citizenship is described as an ‘open or evolving concept’. Proposals are made on how the fundamental rights aspect in elaborating eu citizenship concept should be strengthened.