Under the new suggested criteria, more countries would be eligible to join this list under their current epidemiological situations.
Furthermore, as more countries flatten their curves and inoculate their citizens, their downward numbers could make them eligible to join in the near future, especially if the council updates the lists on a frequent basis.
So, which countries could soon be added? Right now, the data of which countries are under 25 cases per 100,000 in the last 14 days is available by the ECDC, but it takes some digging through their graphs and charts. Hopefully, a clear list will soon be available.