Will we be circumcised in heaven? I'm just wondering because I grew up in an Islamic family in Iran and I became a Christian when age 23. Will people who were circumcised in this life (like myself) be circumcised in the next life? Or will we be whole in heaven? Because I really don't want to spend all of eternity missing a body part. Sorry if this sounds like a troll question but I actually genuinely am curious about it.
In the words of St. Paul:


  Circumcision is nothing and uncircumcision is nothing, but keeping the
  commandments of God is what matters.
  
  1 Corinthians 7:19


The original circumcision what supposed to be symbolizing what was happening in the heart. It was supposed to be a mark of being part of the People of God. Nevertheless, it became a ritual that meant nothing in practice. This is why God Himself said:


  “And now, Israel, what does the Lord your God require of you, but to fear the Lord your God, to walk in all his ways, to love him, to serve
  the Lord your God with all your heart and with all your soul, and to
  keep the commandments and statutes of the Lord, which I am commanding
  you today for your good? 14 Behold, to the Lord your God belong
  heaven and the heaven of heavens, the earth with all that is in it.
  Yet the Lord set his heart in love on your fathers and chose their
  offspring after them, you above all peoples, as you are this day.
  Circumcise therefore the foreskin of your heart, and be no longer stubborn. For the Lord your God is God of gods and Lord of lords,
  the great, the mighty, and the awesome God, who is not partial and
  takes no bribe.
  
  Deuteronomy 10:12-17


Read also, Leviticus 26:41; Jeremiah 4:4; Jeremiah 6:10; Jeremiah 9:26; Ezekiel 44:7–9

All of these verses have to do with circumcision of the heart. It is to obey God's commandments, all of them.

In heaven this circumcision of the flesh will no longer be necessary because every one there will be a child of God and have perfect obedience, out of love to their Creator, or else they wouldn't be there.