No. If you are ex-communicated, you are separated from the Church and if you start a new organization as a splinter group, your genesis starts at that point.
Is Salvation (Soteriology) restricted to Catholics alone?
In his book, “Journey into Easter”, Cardinal Ratzinger (now Pope Benedict XVI), preached a Retreat to Pope John Paul II.On page 141, he clarifies, “No one has a right to excommunicate”. Iranaeus assumed that, if Jesus Christ is inside the Church, Satan is on the outside. Hence excommunicate.
But St. Augustine excommunicated himself before his death to experience the pain of the excommunicate.
The canonization process of Martin Luther is on.
In Pope John Paul II’s eulogy, Billy Graham, in his foreword, writes, “I first became acquainted with the name of this remarkable man when I visited Poland in 1978. At that time, he was known as Karol Cardinal Wojtyla, and he had invited me to have tea with him and to preach in his home church, St. Anne’s in Krakow. As it turned out, however, we did not meet; he had been called away to Rome to participate in the election of the new pope following the unexpected death of John Paul After that, John Paul welcomed me several times at the Vatican, and although we came from different backgrounds, we developed a warm friendship with each other….
As the world faces the challenges of a new millennium, may Christ’s call to repentance and faith be heard with greater clarity to each of us.”
Communion is sharing the fellowship of Christ. In Spiritual Communion, we receive God “in Spirit and truth” (John4.24). Jesus Christ died for the world. (John3.16). Is Salvation (Soteriology) restricted to Catholics alone?