Sadly, I think there will be a bunch of people who consider themselves to be Christians, but they are solely cultural Christians and they will hear these sad words.

"21 “Not everyone who says to Me, ‘Lord, Lord,’ will enter the kingdom of heaven, but he who does the will of My Father who is in heaven will enter. 22Many will say to Me on that day, ‘Lord, Lord, did we not prophesy in Your name, and in Your name cast out demons, and in Your name perform many miracles?’ 23And then I will declare to them, ‘I never knew you; depart from Me, you who practice lawlessness.’" (Matthew 7:21-23)

There are tons of people who take the parts of Christianity that they like and dump the rest.  They don't treat God as sovereign Lord.  They decide what is right for themselves instead of trusting what God says is right.  Anyone who choses right and wrong for themselves instead of trusting God's commands, is not a true Christian and won't receive forgiveness, God's presence, nor heaven.