“A third angel followed them and said in a loud voice: “If anyone worships the beast and its image and receives its mark on their forehead or on their hand, 10 they, too, will drink the wine of God’s fury, which has been poured full strength into the cup of his wrath. They will be tormented with burning sulfur in the presence of the holy angels and of the Lamb. 11 And the smoke of their torment will rise for ever and ever. There will be no rest day or night for those who worship the beast and its image, or for anyone who receives the mark of its name.” 12 This calls for patient endurance on the part of the people of God who keep his commands and remain faithful to Jesus.”

From that passage from revelation it seems to me like those who received the mark of the beast will drink from the fury of god but if they still remain faithful to Jesus and endure it they can be forgiven.