The ramifications of the severing of ties between the Eucumenical Patriarchate and the Russian Church This may be highly politically charged right now, however can anyone please explain what previously intercommuning churches will be directly impacted by the severing of ties between the Eucumenical Patriarchate and the Russian Orthodox Church (other than the obvious schism between Constantiople and Russia)?

Moscow breaks communion with Constantinople

Will other churches lose communion with Russia? With Constantinople?

Are there other effects that we can expect to see?
For those not familiar with the situation, on October 15, 2018, a Synod of the Russian Orthodox Church ceased communion with the Patriarch of Constantinople.  The Synod's resolution read:


  Henceforth and until the Constantinople Patriarchate renounces its accepted anti-canonical decisions, for all clergy of the Russian Orthodox Church it is not possible to serve with the clergy of the Constantinople Church; and for the laity, it is not possible to participate in the sacraments served in its churches.


The "anti-canonical decisions" that the resolution refers to are those undertaken by the Ecumenical Patriarch to, according to the Russian Orthodox Church*:


"lift the anathema from Philaret Denisenko, the self-proclaimed 'Patriarch” of the “Kiev Patriarchate”', which was placed on him by the Moscow Patriarchate for his oath breaking and unrepentant schism from the canonical Church, leading others into that schism'


and


revoking "the document it signed 300 years ago transferring the Kiev Metropolia to the Moscow Patriarchate"


Although several autocephalous Orthodox Churches have expressed support for the Russian Orthodox Church in this matter, no other Orthodox Church has as yet broken communion with Constantinople.  The Orthodox Church in America, which itself was granted autocephaly by the Moscow Patriarchate in 1970, has made the decision that its members may continue to commune in parishes of the Greek Orthodox Archdiocese in America (which falls under the jurisdiction of the Ecumenical Patriarch).  Furthermore, I don't think that the Ecumenical Patriarch has reciprocated the Russian decision, forbidding clergy and laity from participating in services within a Russian Orthodox Church.  My reading of the Synod's resolution would also not bar lay Orthodox who previously attended a church under the jurisdiction of the Ecumenical Patriarch from participating in Russian Orthodox services, but it would bar clergy from the Patriarchate from serving in a Russian Orthodox Church.

It should be noted, I think, that many of the recent decisions undertaken by the Ecumenical Patriarch have been controversial and have faced criticism, even within the Constantinople Patriarchate itself (e.g. Mt. Athos).  A pan-Orthodox council held in 2016 was boycotted by the Russian, Antiochian, Georgian and Bulgarian Patriarchates for various reasons.  



* Holy Synod Resolution: Moscow Patriarchate Ceases Communion for Clergy and Laity with the Constantinople Patriarchate, October 15, 2018