What's odd is that the Synod in Resistance (that if Metropolitan Cyprian, if I'm not mistaken) has categorically refused to state that those who follow the New Calendar are without grace. It also, at least until now, not repeated sacraments of other Orthodox who come to them.
Metropolitan Cyprian of blessed memory and the SiR never declared the other Orthodox churches to be without grace. In fact, he had a very good relationship with the former Patriarch of Jerusalem, Diodoros of blessed memory.
It will be interesting to see how this works out. Like I said this is good for the moderate Old Calendarists in Greece. There are some pretty extreme ones out there and the movement as a whole needs the moderate voices that these two synods, now one, bring.