In the final step of the SARNET Euratom projects in 2013, an assessment of the ranking of research priorities for severe accidents was elaborated by a group of European experts (named SARP), based on gaps of knowledge and needs identified in SARNET and taking into account the first outcomes of the 2011 Fukushima Daiichi Nuclear Power Station (FDNPS) core meltdown accident. In the autumn of 2017, a group of experts from fifteen NUGENIA TA2/SARNET partners was formed again to perform an update of such ranking, accounting for recent advances on knowledge coming from research initiatives launched in the international frame (mainly EC H2020 and OECD/NEA) and in particular linked to a deeper analysis of the FDNPS accidents. Thirty-five topics were addressed in the following domains: in-vessel accident progression, risk of early containment failure, risk of late containment failure, release and transport of fission products, accident in spent fuel pool storages and other topics (e.g. instrumentation or thermodynamic databases). No big change has been observed with respect to the 2013 ranking, with for instance a very high priority still given to knowledge consolidation on corium behaviour in the lower head and on ex-vessel corium coolability in relation to SA mitigation strategies. Nonetheless, a few new possible research areas have been identified mostly related to long term management of severe accidents.