Since the foundational documents of the Old Calendarist movement are so important before one can intelligently discuss them, I'm going to post a link here (hosted by the GOC of Greece - Kiousis website) to the "1935 Declaration of Faith", which was authored and signed by the three founding heirarchs of the Old Calendarist Synod of Greece.
Points to Consider:
the document is addressed "To the Holy Synod of the Orthodox Church of Greece"; doesn't seem to indicate that these three heirarchs understood themselves as the replacement for a Synod which had utterly fallen and ceased to have any claim whatsoever to being a part of the Orthodox Church.
The document continuously refers to the Synod of the State Church as the "ruling Synod";
For these reasons, in submitting to the Ruling Synod our annotated protest we make known that from henceforth, we sever all relations and ecclesiastical communion with the [Ruling Hierarchy] for as long as it maintains the calendar innovation, taking up the Ecclesiastical pastorship of the section of the Orthodox Greek people, organized in numerous communities, that renounced the State Church and remained faithful to the Patristic and Orthodox Julian calendar.
The document also envisions this break between the Old Calendarists and the State Church as being temporary - "we sever all relations and ecclesiastical communion with the [Ruling Hierarchy] for as long as it maintainst he calendar innovation...".
The same document refers to those who have gone into resistance/protest against the new calendar and severed ties with the "Ruling Synod" of the Church of Greece as "the section of the Orthodox Greek people, organized in numerous communities".
Equally interesting is the line most quoted which typically is interpreted as a sentence by the three Old Calendar Heirarchs against the State Church...
Because, last of all among the above listed reasons, the Ruling Hierarchy of Greece cut and walled itself off from the catholic body of Orthodoxy, according to the spirit of the Holy Canons, effectively declaring itself schismatic, as argued the special committee of National University legal scholars and theologians appointed to examine the calendar question, a member of which His Beatitude happened to be, serving then as a university professor;
Thus, while the document's words are grave, they are not unequivocal; "effectively" doesn't strike me as a sentence, but an appraisal/interpretation of the implicit import of so violently disrupting the liturgical unity of the Orthodox Church.
While none of the above demonstrates that the situation of the ecumenists has not worsened since 1935, or that they have not since then done other things to cease to be parts of the Church in any sense, I think citing the 1935 Declaration as proof of this (at least against the Church of Greece) is overstepping what the document actually says. Reading the text carefully (and observing it is not the most unequivocal document in the world), I can 100% understand why at least Metropolitan Chrysostmos (of Florina) understood the situation as one of "potential schism", and why there is no clear evidence that he ever wholeheartedly changed this position (but like so many people, perhaps waivered, pondered, and doubted about the increasingly stubborn and ecumenistic State Church).
Seraphim