The current PCI list, on which the CARES project figures, will continue to be valid until Spring 2022. Being entirely in the UK and therefore outside the EU since Brexit, CARES is not eligible for the next list.
Therefore, while still officially a PCI and therefore recognised as being important at a continental scale, the project is not eligible for funding or other support from the scheme.
Future projects in the European Union are very likely to qualify as PCIs and therefore able to apply for all PCI related support.