I personally believe that be you Catholic, Protestant, or Orthodox and you believe in the primary tenants of Christianity (God in 3 persons, Jesus died for your sins etc.) you go to heaven and are all brothers and sisters in Christ- period. We still have our sibling rivalries and arguments, but we're still a family. As for deconversion...I honestly haven't heard of that one in the context you describe and I'm Catholic =/

Gloria Patri et Filii et Spiritu Sancti, Amen!

"For I know the thoughts that I think towards you, saith the Lord, thoughts of peace, and not of affliction, to give you an end and patience. "